Run id: 73588

Main.cc: In function 'int main()':
Main.cc:3:2: error: 'cin' was not declared in this scope
  cin>>a;
  ^
Main.cc:5:3: error: 'cout' was not declared in this scope
   cout<<"NO";
   ^
Main.cc:8:3: error: 'cout' was not declared in this scope
   cout<<"NO";
   ^
Main.cc:10:3: error: 'cout' was not declared in this scope
   cout<<"YES";
   ^