/in/foo.cc: In function 'int main()':
/in/foo.cc:7:5: error: 'cin' was not declared in this scope
     cin>>c;
     ^~~
/in/foo.cc:11:7: error: 'cout' was not declared in this scope
       cout<<"-";
       ^~~~
/in/foo.cc:38:17: error: 'cout' was not declared in this scope
                 cout<<c[i];
                 ^~~~
/in/foo.cc:42:9: error: 'cout' was not declared in this scope
         cout<<c[i];
         ^~~~