Run id: 65216

Main.cc:1:14: error: expected '{' before ';' token
 namespace std;
              ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:35:0,
                 from Main.cc:2:
/usr/include/c++/5/cctype:64:11: error: '::isalnum' has not been declared
   using ::isalnum;
           ^
/usr/include/c++/5/cctype:65:11: error: '::isalpha' has not been declared
   using ::isalpha;
           ^
/usr/include/c++/5/cctype:66:11: error: '::iscntrl' has not been declared
   using ::iscntrl;
           ^
/usr/include/c++/5/cctype:67:11: error: '::isdigit' has not been declared
   using ::isdigit;
           ^
/usr/include/c++/5/cctype:68:11: error: '::isgraph' has not been declared
   using ::isgraph;
           ^
/usr/include/c++/5/cctype:69:11: error: '::islower' has not been declared
   using ::islower;
           ^
/usr/include/c++/5/cctype:70:11: error: '::isprint' has not been declared
   using ::isprint;
           ^
/usr/include/c++/5/cctype:71:11: error: '::ispunct' has not been declared
   using ::ispunct;
           ^
/usr/include/c++/5/cctype:72:11: error: '::isspace' has not been declared
   using ::isspace;
           ^
/usr/include/c++/5/cctype:73:11: error: '::isupper' has not been declared
   using ::isupper;
           ^
/usr/include/c++/5/cctype:74:11: error: '::isxdigit' has not been declared
   using ::isxdigit;
           ^
/usr/include/c++/5/cctype:75:11: error: '::tolower' has not been declared
   using ::tolower;
           ^
/usr/include/c++/5/cctype:76:11: error: '::toupper' has not been declared
   using ::toupper;
           ^
/usr/include/c++/5/cctype:87:11: error: '::isblank' has not been declared
   using ::isblank;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:40:0,
                 from Main.cc:2:
/usr/include/c++/5/clocale:53:11: error: '::lconv' has not been declared
   using ::lconv;
           ^
/usr/include/c++/5/clocale:54:11: error: '::setlocale' has not been declared
   using ::setlocale;
           ^
/usr/include/c++/5/clocale:55:11: error: '::localeconv' has not been declared
   using ::localeconv;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:41:0,
                 from Main.cc:2:
/usr/include/c++/5/cmath:102:11: error: '::acos' has not been declared
   using ::acos;
           ^
/usr/include/c++/5/cmath:121:11: error: '::asin' has not been declared
   using ::asin;
           ^
/usr/include/c++/5/cmath:140:11: error: '::atan' has not been declared
   using ::atan;
           ^
/usr/include/c++/5/cmath:159:11: error: '::atan2' has not been declared
   using ::atan2;
           ^
/usr/include/c++/5/cmath:180:11: error: '::ceil' has not been declared
   using ::ceil;
           ^
/usr/include/c++/5/cmath:199:11: error: '::cos' has not been declared
   using ::cos;
           ^
/usr/include/c++/5/cmath:218:11: error: '::cosh' has not been declared
   using ::cosh;
           ^
/usr/include/c++/5/cmath:237:11: error: '::exp' has not been declared
   using ::exp;
           ^
/usr/include/c++/5/cmath:256:11: error: '::fabs' has not been declared
   using ::fabs;
           ^
/usr/include/c++/5/cmath:275:11: error: '::floor' has not been declared
   using ::floor;
           ^
/usr/include/c++/5/cmath:294:11: error: '::fmod' has not been declared
   using ::fmod;
           ^
/usr/include/c++/5/cmath:315:11: error: '::frexp' has not been declared
   using ::frexp;
           ^
/usr/include/c++/5/cmath:334:11: error: '::ldexp' has not been declared
   using ::ldexp;
           ^
/usr/include/c++/5/cmath:353:11: error: '::log' has not been declared
   using ::log;
           ^
/usr/include/c++/5/cmath:372:11: error: '::log10' has not been declared
   using ::log10;
           ^
/usr/include/c++/5/cmath:391:11: error: '::modf' has not been declared
   using ::modf;
           ^
/usr/include/c++/5/cmath:403:11: error: '::pow' has not been declared
   using ::pow;
           ^
/usr/include/c++/5/cmath:440:11: error: '::sin' has not been declared
   using ::sin;
           ^
/usr/include/c++/5/cmath:459:11: error: '::sinh' has not been declared
   using ::sinh;
           ^
/usr/include/c++/5/cmath:478:11: error: '::sqrt' has not been declared
   using ::sqrt;
           ^
/usr/include/c++/5/cmath:497:11: error: '::tan' has not been declared
   using ::tan;
           ^
/usr/include/c++/5/cmath:516:11: error: '::tanh' has not been declared
   using ::tanh;
           ^
/usr/include/c++/5/cmath:1067:11: error: '::double_t' has not been declared
   using ::double_t;
           ^
/usr/include/c++/5/cmath:1068:11: error: '::float_t' has not been declared
   using ::float_t;
           ^
/usr/include/c++/5/cmath:1071:11: error: '::acosh' has not been declared
   using ::acosh;
           ^
/usr/include/c++/5/cmath:1072:11: error: '::acoshf' has not been declared
   using ::acoshf;
           ^
/usr/include/c++/5/cmath:1073:11: error: '::acoshl' has not been declared
   using ::acoshl;
           ^
/usr/include/c++/5/cmath:1075:11: error: '::asinh' has not been declared
   using ::asinh;
           ^
/usr/include/c++/5/cmath:1076:11: error: '::asinhf' has not been declared
   using ::asinhf;
           ^
/usr/include/c++/5/cmath:1077:11: error: '::asinhl' has not been declared
   using ::asinhl;
           ^
/usr/include/c++/5/cmath:1079:11: error: '::atanh' has not been declared
   using ::atanh;
           ^
/usr/include/c++/5/cmath:1080:11: error: '::atanhf' has not been declared
   using ::atanhf;
           ^
/usr/include/c++/5/cmath:1081:11: error: '::atanhl' has not been declared
   using ::atanhl;
           ^
/usr/include/c++/5/cmath:1083:11: error: '::cbrt' has not been declared
   using ::cbrt;
           ^
/usr/include/c++/5/cmath:1084:11: error: '::cbrtf' has not been declared
   using ::cbrtf;
           ^
/usr/include/c++/5/cmath:1085:11: error: '::cbrtl' has not been declared
   using ::cbrtl;
           ^
/usr/include/c++/5/cmath:1087:11: error: '::copysign' has not been declared
   using ::copysign;
           ^
/usr/include/c++/5/cmath:1088:11: error: '::copysignf' has not been declared
   using ::copysignf;
           ^
/usr/include/c++/5/cmath:1089:11: error: '::copysignl' has not been declared
   using ::copysignl;
           ^
/usr/include/c++/5/cmath:1091:11: error: '::erf' has not been declared
   using ::erf;
           ^
/usr/include/c++/5/cmath:1092:11: error: '::erff' has not been declared
   using ::erff;
           ^
/usr/include/c++/5/cmath:1093:11: error: '::erfl' has not been declared
   using ::erfl;
           ^
/usr/include/c++/5/cmath:1095:11: error: '::erfc' has not been declared
   using ::erfc;
           ^
/usr/include/c++/5/cmath:1096:11: error: '::erfcf' has not been declared
   using ::erfcf;
           ^
/usr/include/c++/5/cmath:1097:11: error: '::erfcl' has not been declared
   using ::erfcl;
           ^
/usr/include/c++/5/cmath:1099:11: error: '::exp2' has not been declared
   using ::exp2;
           ^
/usr/include/c++/5/cmath:1100:11: error: '::exp2f' has not been declared
   using ::exp2f;
           ^
/usr/include/c++/5/cmath:1101:11: error: '::exp2l' has not been declared
   using ::exp2l;
           ^
/usr/include/c++/5/cmath:1103:11: error: '::expm1' has not been declared
   using ::expm1;
           ^
/usr/include/c++/5/cmath:1104:11: error: '::expm1f' has not been declared
   using ::expm1f;
           ^
/usr/include/c++/5/cmath:1105:11: error: '::expm1l' has not been declared
   using ::expm1l;
           ^
/usr/include/c++/5/cmath:1107:11: error: '::fdim' has not been declared
   using ::fdim;
           ^
/usr/include/c++/5/cmath:1108:11: error: '::fdimf' has not been declared
   using ::fdimf;
           ^
/usr/include/c++/5/cmath:1109:11: error: '::fdiml' has not been declared
   using ::fdiml;
           ^
/usr/include/c++/5/cmath:1111:11: error: '::fma' has not been declared
   using ::fma;
           ^
/usr/include/c++/5/cmath:1112:11: error: '::fmaf' has not been declared
   using ::fmaf;
           ^
/usr/include/c++/5/cmath:1113:11: error: '::fmal' has not been declared
   using ::fmal;
           ^
/usr/include/c++/5/cmath:1115:11: error: '::fmax' has not been declared
   using ::fmax;
           ^
/usr/include/c++/5/cmath:1116:11: error: '::fmaxf' has not been declared
   using ::fmaxf;
           ^
/usr/include/c++/5/cmath:1117:11: error: '::fmaxl' has not been declared
   using ::fmaxl;
           ^
/usr/include/c++/5/cmath:1119:11: error: '::fmin' has not been declared
   using ::fmin;
           ^
/usr/include/c++/5/cmath:1120:11: error: '::fminf' has not been declared
   using ::fminf;
           ^
/usr/include/c++/5/cmath:1121:11: error: '::fminl' has not been declared
   using ::fminl;
           ^
/usr/include/c++/5/cmath:1123:11: error: '::hypot' has not been declared
   using ::hypot;
           ^
/usr/include/c++/5/cmath:1124:11: error: '::hypotf' has not been declared
   using ::hypotf;
           ^
/usr/include/c++/5/cmath:1125:11: error: '::hypotl' has not been declared
   using ::hypotl;
           ^
/usr/include/c++/5/cmath:1127:11: error: '::ilogb' has not been declared
   using ::ilogb;
           ^
/usr/include/c++/5/cmath:1128:11: error: '::ilogbf' has not been declared
   using ::ilogbf;
           ^
/usr/include/c++/5/cmath:1129:11: error: '::ilogbl' has not been declared
   using ::ilogbl;
           ^
/usr/include/c++/5/cmath:1131:11: error: '::lgamma' has not been declared
   using ::lgamma;
           ^
/usr/include/c++/5/cmath:1132:11: error: '::lgammaf' has not been declared
   using ::lgammaf;
           ^
/usr/include/c++/5/cmath:1133:11: error: '::lgammal' has not been declared
   using ::lgammal;
           ^
/usr/include/c++/5/cmath:1135:11: error: '::llrint' has not been declared
   using ::llrint;
           ^
/usr/include/c++/5/cmath:1136:11: error: '::llrintf' has not been declared
   using ::llrintf;
           ^
/usr/include/c++/5/cmath:1137:11: error: '::llrintl' has not been declared
   using ::llrintl;
           ^
/usr/include/c++/5/cmath:1139:11: error: '::llround' has not been declared
   using ::llround;
           ^
/usr/include/c++/5/cmath:1140:11: error: '::llroundf' has not been declared
   using ::llroundf;
           ^
/usr/include/c++/5/cmath:1141:11: error: '::llroundl' has not been declared
   using ::llroundl;
           ^
/usr/include/c++/5/cmath:1143:11: error: '::log1p' has not been declared
   using ::log1p;
           ^
/usr/include/c++/5/cmath:1144:11: error: '::log1pf' has not been declared
   using ::log1pf;
           ^
/usr/include/c++/5/cmath:1145:11: error: '::log1pl' has not been declared
   using ::log1pl;
           ^
/usr/include/c++/5/cmath:1147:11: error: '::log2' has not been declared
   using ::log2;
           ^
/usr/include/c++/5/cmath:1148:11: error: '::log2f' has not been declared
   using ::log2f;
           ^
/usr/include/c++/5/cmath:1149:11: error: '::log2l' has not been declared
   using ::log2l;
           ^
/usr/include/c++/5/cmath:1151:11: error: '::logb' has not been declared
   using ::logb;
           ^
/usr/include/c++/5/cmath:1152:11: error: '::logbf' has not been declared
   using ::logbf;
           ^
/usr/include/c++/5/cmath:1153:11: error: '::logbl' has not been declared
   using ::logbl;
           ^
/usr/include/c++/5/cmath:1155:11: error: '::lrint' has not been declared
   using ::lrint;
           ^
/usr/include/c++/5/cmath:1156:11: error: '::lrintf' has not been declared
   using ::lrintf;
           ^
/usr/include/c++/5/cmath:1157:11: error: '::lrintl' has not been declared
   using ::lrintl;
           ^
/usr/include/c++/5/cmath:1159:11: error: '::lround' has not been declared
   using ::lround;
           ^
/usr/include/c++/5/cmath:1160:11: error: '::lroundf' has not been declared
   using ::lroundf;
           ^
/usr/include/c++/5/cmath:1161:11: error: '::lroundl' has not been declared
   using ::lroundl;
           ^
/usr/include/c++/5/cmath:1163:11: error: '::nan' has not been declared
   using ::nan;
           ^
/usr/include/c++/5/cmath:1164:11: error: '::nanf' has not been declared
   using ::nanf;
           ^
/usr/include/c++/5/cmath:1165:11: error: '::nanl' has not been declared
   using ::nanl;
           ^
/usr/include/c++/5/cmath:1167:11: error: '::nearbyint' has not been declared
   using ::nearbyint;
           ^
/usr/include/c++/5/cmath:1168:11: error: '::nearbyintf' has not been declared
   using ::nearbyintf;
           ^
/usr/include/c++/5/cmath:1169:11: error: '::nearbyintl' has not been declared
   using ::nearbyintl;
           ^
/usr/include/c++/5/cmath:1171:11: error: '::nextafter' has not been declared
   using ::nextafter;
           ^
/usr/include/c++/5/cmath:1172:11: error: '::nextafterf' has not been declared
   using ::nextafterf;
           ^
/usr/include/c++/5/cmath:1173:11: error: '::nextafterl' has not been declared
   using ::nextafterl;
           ^
/usr/include/c++/5/cmath:1175:11: error: '::nexttoward' has not been declared
   using ::nexttoward;
           ^
/usr/include/c++/5/cmath:1176:11: error: '::nexttowardf' has not been declared
   using ::nexttowardf;
           ^
/usr/include/c++/5/cmath:1177:11: error: '::nexttowardl' has not been declared
   using ::nexttowardl;
           ^
/usr/include/c++/5/cmath:1179:11: error: '::remainder' has not been declared
   using ::remainder;
           ^
/usr/include/c++/5/cmath:1180:11: error: '::remainderf' has not been declared
   using ::remainderf;
           ^
/usr/include/c++/5/cmath:1181:11: error: '::remainderl' has not been declared
   using ::remainderl;
           ^
/usr/include/c++/5/cmath:1183:11: error: '::remquo' has not been declared
   using ::remquo;
           ^
/usr/include/c++/5/cmath:1184:11: error: '::remquof' has not been declared
   using ::remquof;
           ^
/usr/include/c++/5/cmath:1185:11: error: '::remquol' has not been declared
   using ::remquol;
           ^
/usr/include/c++/5/cmath:1187:11: error: '::rint' has not been declared
   using ::rint;
           ^
/usr/include/c++/5/cmath:1188:11: error: '::rintf' has not been declared
   using ::rintf;
           ^
/usr/include/c++/5/cmath:1189:11: error: '::rintl' has not been declared
   using ::rintl;
           ^
/usr/include/c++/5/cmath:1191:11: error: '::round' has not been declared
   using ::round;
           ^
/usr/include/c++/5/cmath:1192:11: error: '::roundf' has not been declared
   using ::roundf;
           ^
/usr/include/c++/5/cmath:1193:11: error: '::roundl' has not been declared
   using ::roundl;
           ^
/usr/include/c++/5/cmath:1195:11: error: '::scalbln' has not been declared
   using ::scalbln;
           ^
/usr/include/c++/5/cmath:1196:11: error: '::scalblnf' has not been declared
   using ::scalblnf;
           ^
/usr/include/c++/5/cmath:1197:11: error: '::scalblnl' has not been declared
   using ::scalblnl;
           ^
/usr/include/c++/5/cmath:1199:11: error: '::scalbn' has not been declared
   using ::scalbn;
           ^
/usr/include/c++/5/cmath:1200:11: error: '::scalbnf' has not been declared
   using ::scalbnf;
           ^
/usr/include/c++/5/cmath:1201:11: error: '::scalbnl' has not been declared
   using ::scalbnl;
           ^
/usr/include/c++/5/cmath:1203:11: error: '::tgamma' has not been declared
   using ::tgamma;
           ^
/usr/include/c++/5/cmath:1204:11: error: '::tgammaf' has not been declared
   using ::tgammaf;
           ^
/usr/include/c++/5/cmath:1205:11: error: '::tgammal' has not been declared
   using ::tgammal;
           ^
/usr/include/c++/5/cmath:1207:11: error: '::trunc' has not been declared
   using ::trunc;
           ^
/usr/include/c++/5/cmath:1208:11: error: '::truncf' has not been declared
   using ::truncf;
           ^
/usr/include/c++/5/cmath:1209:11: error: '::truncl' has not been declared
   using ::truncl;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:42:0,
                 from Main.cc:2:
/usr/include/c++/5/csetjmp:57:11: error: '::jmp_buf' has not been declared
   using ::jmp_buf;
           ^
/usr/include/c++/5/csetjmp:58:11: error: '::longjmp' has not been declared
   using ::longjmp;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:43:0,
                 from Main.cc:2:
/usr/include/c++/5/csignal:52:11: error: '::sig_atomic_t' has not been declared
   using ::sig_atomic_t;
           ^
/usr/include/c++/5/csignal:53:11: error: '::signal' has not been declared
   using ::signal;
           ^
/usr/include/c++/5/csignal:54:11: error: '::raise' has not been declared
   using ::raise;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:44:0,
                 from Main.cc:2:
/usr/include/c++/5/cstdarg:54:11: error: '::va_list' has not been declared
   using ::va_list;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:45:0,
                 from Main.cc:2:
/usr/include/c++/5/cstddef:51:11: error: '::max_align_t' has not been declared
   using ::max_align_t;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:46:0,
                 from Main.cc:2:
/usr/include/c++/5/cstdio:98:11: error: '::FILE' has not been declared
   using ::FILE;
           ^
/usr/include/c++/5/cstdio:99:11: error: '::fpos_t' has not been declared
   using ::fpos_t;
           ^
/usr/include/c++/5/cstdio:101:11: error: '::clearerr' has not been declared
   using ::clearerr;
           ^
/usr/include/c++/5/cstdio:102:11: error: '::fclose' has not been declared
   using ::fclose;
           ^
/usr/include/c++/5/cstdio:103:11: error: '::feof' has not been declared
   using ::feof;
           ^
/usr/include/c++/5/cstdio:104:11: error: '::ferror' has not been declared
   using ::ferror;
           ^
/usr/include/c++/5/cstdio:105:11: error: '::fflush' has not been declared
   using ::fflush;
           ^
/usr/include/c++/5/cstdio:106:11: error: '::fgetc' has not been declared
   using ::fgetc;
           ^
/usr/include/c++/5/cstdio:107:11: error: '::fgetpos' has not been declared
   using ::fgetpos;
           ^
/usr/include/c++/5/cstdio:108:11: error: '::fgets' has not been declared
   using ::fgets;
           ^
/usr/include/c++/5/cstdio:109:11: error: '::fopen' has not been declared
   using ::fopen;
           ^
/usr/include/c++/5/cstdio:110:11: error: '::fprintf' has not been declared
   using ::fprintf;
           ^
/usr/include/c++/5/cstdio:111:11: error: '::fputc' has not been declared
   using ::fputc;
           ^
/usr/include/c++/5/cstdio:112:11: error: '::fputs' has not been declared
   using ::fputs;
           ^
/usr/include/c++/5/cstdio:113:11: error: '::fread' has not been declared
   using ::fread;
           ^
/usr/include/c++/5/cstdio:114:11: error: '::freopen' has not been declared
   using ::freopen;
           ^
/usr/include/c++/5/cstdio:115:11: error: '::fscanf' has not been declared
   using ::fscanf;
           ^
/usr/include/c++/5/cstdio:116:11: error: '::fseek' has not been declared
   using ::fseek;
           ^
/usr/include/c++/5/cstdio:117:11: error: '::fsetpos' has not been declared
   using ::fsetpos;
           ^
/usr/include/c++/5/cstdio:118:11: error: '::ftell' has not been declared
   using ::ftell;
           ^
/usr/include/c++/5/cstdio:119:11: error: '::fwrite' has not been declared
   using ::fwrite;
           ^
/usr/include/c++/5/cstdio:120:11: error: '::getc' has not been declared
   using ::getc;
           ^
/usr/include/c++/5/cstdio:121:11: error: '::getchar' has not been declared
   using ::getchar;
           ^
/usr/include/c++/5/cstdio:124:11: error: '::gets' has not been declared
   using ::gets;
           ^
/usr/include/c++/5/cstdio:126:11: error: '::perror' has not been declared
   using ::perror;
           ^
/usr/include/c++/5/cstdio:127:11: error: '::printf' has not been declared
   using ::printf;
           ^
/usr/include/c++/5/cstdio:128:11: error: '::putc' has not been declared
   using ::putc;
           ^
/usr/include/c++/5/cstdio:129:11: error: '::putchar' has not been declared
   using ::putchar;
           ^
/usr/include/c++/5/cstdio:130:11: error: '::puts' has not been declared
   using ::puts;
           ^
/usr/include/c++/5/cstdio:131:11: error: '::remove' has not been declared
   using ::remove;
           ^
/usr/include/c++/5/cstdio:132:11: error: '::rename' has not been declared
   using ::rename;
           ^
/usr/include/c++/5/cstdio:133:11: error: '::rewind' has not been declared
   using ::rewind;
           ^
/usr/include/c++/5/cstdio:134:11: error: '::scanf' has not been declared
   using ::scanf;
           ^
/usr/include/c++/5/cstdio:135:11: error: '::setbuf' has not been declared
   using ::setbuf;
           ^
/usr/include/c++/5/cstdio:136:11: error: '::setvbuf' has not been declared
   using ::setvbuf;
           ^
/usr/include/c++/5/cstdio:137:11: error: '::sprintf' has not been declared
   using ::sprintf;
           ^
/usr/include/c++/5/cstdio:138:11: error: '::sscanf' has not been declared
   using ::sscanf;
           ^
/usr/include/c++/5/cstdio:139:11: error: '::tmpfile' has not been declared
   using ::tmpfile;
           ^
/usr/include/c++/5/cstdio:141:11: error: '::tmpnam' has not been declared
   using ::tmpnam;
           ^
/usr/include/c++/5/cstdio:143:11: error: '::ungetc' has not been declared
   using ::ungetc;
           ^
/usr/include/c++/5/cstdio:144:11: error: '::vfprintf' has not been declared
   using ::vfprintf;
           ^
/usr/include/c++/5/cstdio:145:11: error: '::vprintf' has not been declared
   using ::vprintf;
           ^
/usr/include/c++/5/cstdio:146:11: error: '::vsprintf' has not been declared
   using ::vsprintf;
           ^
/usr/include/c++/5/cstdio:175:11: error: '::snprintf' has not been declared
   using ::snprintf;
           ^
/usr/include/c++/5/cstdio:176:11: error: '::vfscanf' has not been declared
   using ::vfscanf;
           ^
/usr/include/c++/5/cstdio:177:11: error: '::vscanf' has not been declared
   using ::vscanf;
           ^
/usr/include/c++/5/cstdio:178:11: error: '::vsnprintf' has not been declared
   using ::vsnprintf;
           ^
/usr/include/c++/5/cstdio:179:11: error: '::vsscanf' has not been declared
   using ::vsscanf;
           ^
/usr/include/c++/5/cstdio:185:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::snprintf;
           ^
/usr/include/c++/5/cstdio:186:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::vfscanf;
           ^
/usr/include/c++/5/cstdio:187:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::vscanf;
           ^
/usr/include/c++/5/cstdio:188:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::vsnprintf;
           ^
/usr/include/c++/5/cstdio:189:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::vsscanf;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:47:0,
                 from Main.cc:2:
/usr/include/c++/5/cstdlib:118:11: error: '::div_t' has not been declared
   using ::div_t;
           ^
/usr/include/c++/5/cstdlib:119:11: error: '::ldiv_t' has not been declared
   using ::ldiv_t;
           ^
/usr/include/c++/5/cstdlib:121:11: error: '::abort' has not been declared
   using ::abort;
           ^
/usr/include/c++/5/cstdlib:122:11: error: '::abs' has not been declared
   using ::abs;
           ^
/usr/include/c++/5/cstdlib:123:11: error: '::atexit' has not been declared
   using ::atexit;
           ^
/usr/include/c++/5/cstdlib:126:11: error: '::at_quick_exit' has not been declared
   using ::at_quick_exit;
           ^
/usr/include/c++/5/cstdlib:129:11: error: '::atof' has not been declared
   using ::atof;
           ^
/usr/include/c++/5/cstdlib:130:11: error: '::atoi' has not been declared
   using ::atoi;
           ^
/usr/include/c++/5/cstdlib:131:11: error: '::atol' has not been declared
   using ::atol;
           ^
/usr/include/c++/5/cstdlib:132:11: error: '::bsearch' has not been declared
   using ::bsearch;
           ^
/usr/include/c++/5/cstdlib:133:11: error: '::calloc' has not been declared
   using ::calloc;
           ^
/usr/include/c++/5/cstdlib:134:11: error: '::div' has not been declared
   using ::div;
           ^
/usr/include/c++/5/cstdlib:135:11: error: '::exit' has not been declared
   using ::exit;
           ^
/usr/include/c++/5/cstdlib:136:11: error: '::free' has not been declared
   using ::free;
           ^
/usr/include/c++/5/cstdlib:137:11: error: '::getenv' has not been declared
   using ::getenv;
           ^
/usr/include/c++/5/cstdlib:138:11: error: '::labs' has not been declared
   using ::labs;
           ^
/usr/include/c++/5/cstdlib:139:11: error: '::ldiv' has not been declared
   using ::ldiv;
           ^
/usr/include/c++/5/cstdlib:140:11: error: '::malloc' has not been declared
   using ::malloc;
           ^
/usr/include/c++/5/cstdlib:142:11: error: '::mblen' has not been declared
   using ::mblen;
           ^
/usr/include/c++/5/cstdlib:143:11: error: '::mbstowcs' has not been declared
   using ::mbstowcs;
           ^
/usr/include/c++/5/cstdlib:144:11: error: '::mbtowc' has not been declared
   using ::mbtowc;
           ^
/usr/include/c++/5/cstdlib:146:11: error: '::qsort' has not been declared
   using ::qsort;
           ^
/usr/include/c++/5/cstdlib:149:11: error: '::quick_exit' has not been declared
   using ::quick_exit;
           ^
/usr/include/c++/5/cstdlib:152:11: error: '::rand' has not been declared
   using ::rand;
           ^
/usr/include/c++/5/cstdlib:153:11: error: '::realloc' has not been declared
   using ::realloc;
           ^
/usr/include/c++/5/cstdlib:154:11: error: '::srand' has not been declared
   using ::srand;
           ^
/usr/include/c++/5/cstdlib:155:11: error: '::strtod' has not been declared
   using ::strtod;
           ^
/usr/include/c++/5/cstdlib:156:11: error: '::strtol' has not been declared
   using ::strtol;
           ^
/usr/include/c++/5/cstdlib:157:11: error: '::strtoul' has not been declared
   using ::strtoul;
           ^
/usr/include/c++/5/cstdlib:158:11: error: '::system' has not been declared
   using ::system;
           ^
/usr/include/c++/5/cstdlib:160:11: error: '::wcstombs' has not been declared
   using ::wcstombs;
           ^
/usr/include/c++/5/cstdlib:161:11: error: '::wctomb' has not been declared
   using ::wctomb;
           ^
/usr/include/c++/5/cstdlib:214:11: error: '::lldiv_t' has not been declared
   using ::lldiv_t;
           ^
/usr/include/c++/5/cstdlib:220:11: error: '::_Exit' has not been declared
   using ::_Exit;
           ^
/usr/include/c++/5/cstdlib:224:11: error: '::llabs' has not been declared
   using ::llabs;
           ^
/usr/include/c++/5/cstdlib:230:11: error: '::lldiv' has not been declared
   using ::lldiv;
           ^
/usr/include/c++/5/cstdlib:241:11: error: '::atoll' has not been declared
   using ::atoll;
           ^
/usr/include/c++/5/cstdlib:242:11: error: '::strtoll' has not been declared
   using ::strtoll;
           ^
/usr/include/c++/5/cstdlib:243:11: error: '::strtoull' has not been declared
   using ::strtoull;
           ^
/usr/include/c++/5/cstdlib:245:11: error: '::strtof' has not been declared
   using ::strtof;
           ^
/usr/include/c++/5/cstdlib:246:11: error: '::strtold' has not been declared
   using ::strtold;
           ^
/usr/include/c++/5/cstdlib:254:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::lldiv_t;
           ^
/usr/include/c++/5/cstdlib:256:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::_Exit;
           ^
/usr/include/c++/5/cstdlib:258:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::llabs;
           ^
/usr/include/c++/5/cstdlib:259:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::div;
           ^
/usr/include/c++/5/cstdlib:260:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::lldiv;
           ^
/usr/include/c++/5/cstdlib:262:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::atoll;
           ^
/usr/include/c++/5/cstdlib:263:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::strtof;
           ^
/usr/include/c++/5/cstdlib:264:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::strtoll;
           ^
/usr/include/c++/5/cstdlib:265:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::strtoull;
           ^
/usr/include/c++/5/cstdlib:266:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::strtold;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:48:0,
                 from Main.cc:2:
/usr/include/c++/5/cstring:75:11: error: '::memchr' has not been declared
   using ::memchr;
           ^
/usr/include/c++/5/cstring:76:11: error: '::memcmp' has not been declared
   using ::memcmp;
           ^
/usr/include/c++/5/cstring:77:11: error: '::memcpy' has not been declared
   using ::memcpy;
           ^
/usr/include/c++/5/cstring:78:11: error: '::memmove' has not been declared
   using ::memmove;
           ^
/usr/include/c++/5/cstring:79:11: error: '::memset' has not been declared
   using ::memset;
           ^
/usr/include/c++/5/cstring:80:11: error: '::strcat' has not been declared
   using ::strcat;
           ^
/usr/include/c++/5/cstring:81:11: error: '::strcmp' has not been declared
   using ::strcmp;
           ^
/usr/include/c++/5/cstring:82:11: error: '::strcoll' has not been declared
   using ::strcoll;
           ^
/usr/include/c++/5/cstring:83:11: error: '::strcpy' has not been declared
   using ::strcpy;
           ^
/usr/include/c++/5/cstring:84:11: error: '::strcspn' has not been declared
   using ::strcspn;
           ^
/usr/include/c++/5/cstring:85:11: error: '::strerror' has not been declared
   using ::strerror;
           ^
/usr/include/c++/5/cstring:86:11: error: '::strlen' has not been declared
   using ::strlen;
           ^
/usr/include/c++/5/cstring:87:11: error: '::strncat' has not been declared
   using ::strncat;
           ^
/usr/include/c++/5/cstring:88:11: error: '::strncmp' has not been declared
   using ::strncmp;
           ^
/usr/include/c++/5/cstring:89:11: error: '::strncpy' has not been declared
   using ::strncpy;
           ^
/usr/include/c++/5/cstring:90:11: error: '::strspn' has not been declared
   using ::strspn;
           ^
/usr/include/c++/5/cstring:91:11: error: '::strtok' has not been declared
   using ::strtok;
           ^
/usr/include/c++/5/cstring:92:11: error: '::strxfrm' has not been declared
   using ::strxfrm;
           ^
/usr/include/c++/5/cstring:93:11: error: '::strchr' has not been declared
   using ::strchr;
           ^
/usr/include/c++/5/cstring:94:11: error: '::strpbrk' has not been declared
   using ::strpbrk;
           ^
/usr/include/c++/5/cstring:95:11: error: '::strrchr' has not been declared
   using ::strrchr;
           ^
/usr/include/c++/5/cstring:96:11: error: '::strstr' has not been declared
   using ::strstr;
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:49:0,
                 from Main.cc:2:
/usr/include/c++/5/ctime:60:11: error: '::clock_t' has not been declared
   using ::clock_t;
           ^
/usr/include/c++/5/ctime:61:11: error: '::time_t' has not been declared
   using ::time_t;
           ^
/usr/include/c++/5/ctime:62:11: error: '::tm' has not been declared
   using ::tm;
           ^
/usr/include/c++/5/ctime:64:11: error: '::clock' has not been declared
   using ::clock;
           ^
/usr/include/c++/5/ctime:65:11: error: '::difftime' has not been declared
   using ::difftime;
           ^
/usr/include/c++/5/ctime:66:11: error: '::mktime' has not been declared
   using ::mktime;
           ^
/usr/include/c++/5/ctime:67:11: error: '::time' has not been declared
   using ::time;
           ^
/usr/include/c++/5/ctime:68:11: error: '::asctime' has not been declared
   using ::asctime;
           ^
/usr/include/c++/5/ctime:69:11: error: '::ctime' has not been declared
   using ::ctime;
           ^
/usr/include/c++/5/ctime:70:11: error: '::gmtime' has not been declared
   using ::gmtime;
           ^
/usr/include/c++/5/ctime:71:11: error: '::localtime' has not been declared
   using ::localtime;
           ^
/usr/include/c++/5/ctime:72:11: error: '::strftime' has not been declared
   using ::strftime;
           ^
In file included from /usr/include/c++/5/bits/postypes.h:40:0,
                 from /usr/include/c++/5/iosfwd:40,
                 from /usr/include/c++/5/ios:38,
                 from /usr/include/c++/5/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 from Main.cc:2:
/usr/include/c++/5/cwchar:64:11: error: '::mbstate_t' has not been declared
   using ::mbstate_t;
           ^
/usr/include/c++/5/cwchar:139:11: error: '::wint_t' has not been declared
   using ::wint_t;
           ^
/usr/include/c++/5/cwchar:141:11: error: '::btowc' has not been declared
   using ::btowc;
           ^
/usr/include/c++/5/cwchar:142:11: error: '::fgetwc' has not been declared
   using ::fgetwc;
           ^
/usr/include/c++/5/cwchar:143:11: error: '::fgetws' has not been declared
   using ::fgetws;
           ^
/usr/include/c++/5/cwchar:144:11: error: '::fputwc' has not been declared
   using ::fputwc;
           ^
/usr/include/c++/5/cwchar:145:11: error: '::fputws' has not been declared
   using ::fputws;
           ^
/usr/include/c++/5/cwchar:146:11: error: '::fwide' has not been declared
   using ::fwide;
           ^
/usr/include/c++/5/cwchar:147:11: error: '::fwprintf' has not been declared
   using ::fwprintf;
           ^
/usr/include/c++/5/cwchar:148:11: error: '::fwscanf' has not been declared
   using ::fwscanf;
           ^
/usr/include/c++/5/cwchar:149:11: error: '::getwc' has not been declared
   using ::getwc;
           ^
/usr/include/c++/5/cwchar:150:11: error: '::getwchar' has not been declared
   using ::getwchar;
           ^
/usr/include/c++/5/cwchar:151:11: error: '::mbrlen' has not been declared
   using ::mbrlen;
           ^
/usr/include/c++/5/cwchar:152:11: error: '::mbrtowc' has not been declared
   using ::mbrtowc;
           ^
/usr/include/c++/5/cwchar:153:11: error: '::mbsinit' has not been declared
   using ::mbsinit;
           ^
/usr/include/c++/5/cwchar:154:11: error: '::mbsrtowcs' has not been declared
   using ::mbsrtowcs;
           ^
/usr/include/c++/5/cwchar:155:11: error: '::putwc' has not been declared
   using ::putwc;
           ^
/usr/include/c++/5/cwchar:156:11: error: '::putwchar' has not been declared
   using ::putwchar;
           ^
/usr/include/c++/5/cwchar:158:11: error: '::swprintf' has not been declared
   using ::swprintf;
           ^
/usr/include/c++/5/cwchar:160:11: error: '::swscanf' has not been declared
   using ::swscanf;
           ^
/usr/include/c++/5/cwchar:161:11: error: '::ungetwc' has not been declared
   using ::ungetwc;
           ^
/usr/include/c++/5/cwchar:162:11: error: '::vfwprintf' has not been declared
   using ::vfwprintf;
           ^
/usr/include/c++/5/cwchar:164:11: error: '::vfwscanf' has not been declared
   using ::vfwscanf;
           ^
/usr/include/c++/5/cwchar:167:11: error: '::vswprintf' has not been declared
   using ::vswprintf;
           ^
/usr/include/c++/5/cwchar:170:11: error: '::vswscanf' has not been declared
   using ::vswscanf;
           ^
/usr/include/c++/5/cwchar:172:11: error: '::vwprintf' has not been declared
   using ::vwprintf;
           ^
/usr/include/c++/5/cwchar:174:11: error: '::vwscanf' has not been declared
   using ::vwscanf;
           ^
/usr/include/c++/5/cwchar:176:11: error: '::wcrtomb' has not been declared
   using ::wcrtomb;
           ^
/usr/include/c++/5/cwchar:177:11: error: '::wcscat' has not been declared
   using ::wcscat;
           ^
/usr/include/c++/5/cwchar:178:11: error: '::wcscmp' has not been declared
   using ::wcscmp;
           ^
/usr/include/c++/5/cwchar:179:11: error: '::wcscoll' has not been declared
   using ::wcscoll;
           ^
/usr/include/c++/5/cwchar:180:11: error: '::wcscpy' has not been declared
   using ::wcscpy;
           ^
/usr/include/c++/5/cwchar:181:11: error: '::wcscspn' has not been declared
   using ::wcscspn;
           ^
/usr/include/c++/5/cwchar:182:11: error: '::wcsftime' has not been declared
   using ::wcsftime;
           ^
/usr/include/c++/5/cwchar:183:11: error: '::wcslen' has not been declared
   using ::wcslen;
           ^
/usr/include/c++/5/cwchar:184:11: error: '::wcsncat' has not been declared
   using ::wcsncat;
           ^
/usr/include/c++/5/cwchar:185:11: error: '::wcsncmp' has not been declared
   using ::wcsncmp;
           ^
/usr/include/c++/5/cwchar:186:11: error: '::wcsncpy' has not been declared
   using ::wcsncpy;
           ^
/usr/include/c++/5/cwchar:187:11: error: '::wcsrtombs' has not been declared
   using ::wcsrtombs;
           ^
/usr/include/c++/5/cwchar:188:11: error: '::wcsspn' has not been declared
   using ::wcsspn;
           ^
/usr/include/c++/5/cwchar:189:11: error: '::wcstod' has not been declared
   using ::wcstod;
           ^
/usr/include/c++/5/cwchar:191:11: error: '::wcstof' has not been declared
   using ::wcstof;
           ^
/usr/include/c++/5/cwchar:193:11: error: '::wcstok' has not been declared
   using ::wcstok;
           ^
/usr/include/c++/5/cwchar:194:11: error: '::wcstol' has not been declared
   using ::wcstol;
           ^
/usr/include/c++/5/cwchar:195:11: error: '::wcstoul' has not been declared
   using ::wcstoul;
           ^
/usr/include/c++/5/cwchar:196:11: error: '::wcsxfrm' has not been declared
   using ::wcsxfrm;
           ^
/usr/include/c++/5/cwchar:197:11: error: '::wctob' has not been declared
   using ::wctob;
           ^
/usr/include/c++/5/cwchar:198:11: error: '::wmemcmp' has not been declared
   using ::wmemcmp;
           ^
/usr/include/c++/5/cwchar:199:11: error: '::wmemcpy' has not been declared
   using ::wmemcpy;
           ^
/usr/include/c++/5/cwchar:200:11: error: '::wmemmove' has not been declared
   using ::wmemmove;
           ^
/usr/include/c++/5/cwchar:201:11: error: '::wmemset' has not been declared
   using ::wmemset;
           ^
/usr/include/c++/5/cwchar:202:11: error: '::wprintf' has not been declared
   using ::wprintf;
           ^
/usr/include/c++/5/cwchar:203:11: error: '::wscanf' has not been declared
   using ::wscanf;
           ^
/usr/include/c++/5/cwchar:204:11: error: '::wcschr' has not been declared
   using ::wcschr;
           ^
/usr/include/c++/5/cwchar:205:11: error: '::wcspbrk' has not been declared
   using ::wcspbrk;
           ^
/usr/include/c++/5/cwchar:206:11: error: '::wcsrchr' has not been declared
   using ::wcsrchr;
           ^
/usr/include/c++/5/cwchar:207:11: error: '::wcsstr' has not been declared
   using ::wcsstr;
           ^
/usr/include/c++/5/cwchar:208:11: error: '::wmemchr' has not been declared
   using ::wmemchr;
           ^
/usr/include/c++/5/cwchar:248:11: error: '::wcstold' has not been declared
   using ::wcstold;
           ^
/usr/include/c++/5/cwchar:257:11: error: '::wcstoll' has not been declared
   using ::wcstoll;
           ^
/usr/include/c++/5/cwchar:258:11: error: '::wcstoull' has not been declared
   using ::wcstoull;
           ^
/usr/include/c++/5/cwchar:264:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::wcstold;
           ^
/usr/include/c++/5/cwchar:265:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::wcstoll;
           ^
/usr/include/c++/5/cwchar:266:11: error: '::__gnu_cxx' has not been declared
   using ::__gnu_cxx::wcstoull;
           ^
/usr/include/c++/5/cwchar:280:14: error: 'std::std::wcstof' has not been declared
   using std::wcstof;
              ^
/usr/include/c++/5/cwchar:283:14: error: 'std::std::vfwscanf' has not been declared
   using std::vfwscanf;