Run id: 99464

Main.cc: In function 'int main()':
Main.cc:5:5: error: 'cin' was not declared in this scope
     cin >> k;
     ^
Main.cc:5:5: note: suggested alternative:
In file included from Main.cc:1:0:
/usr/include/c++/5/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
Main.cc:15:5: error: 'cout' was not declared in this scope
     cout <& __os)
     ^