Run id: 66561

Main.cc:3:17: error: expected identifier before ';' token
 using namespace ;
                 ^
Main.cc: In function 'int main()':
Main.cc:6:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%3d%1d",&a,&b);
                          ^