Run id: 81715

Main.cc: In function 'int main()':
Main.cc:6:1: error: 'cin' was not declared in this scope
 cin >> a >> b >> c;
 ^
Main.cc:8:5: error: 'cout' was not declared in this scope
     cout << "YES";
     ^
Main.cc:11:5: error: 'cout' was not declared in this scope
     cout << "NO";
     ^