Main.cc:4:5: error: expected primary-expression before 'int'
int N,M;
^
Main.cc:4:5: error: expected '}' before 'int'
Main.cc:4:5: error: expected ',' or ';' before 'int'
Main.cc:5:5: error: 'cin' does not name a type
cin>>N>>M;
^
Main.cc:6:5: error: 'cout' does not name a type
cout<<(N+M)*2<<" "<