Run id: 85758

Main.cc: In function 'int main()':
Main.cc:6:5: error: 'cin' was not declared in this scope
     cin>>n;
     ^
Main.cc:56:8: error: 'cout' was not declared in this scope
        cout<<"OK";
        ^
Main.cc:58:8: error: 'cout' was not declared in this scope
        cout<