/in/foo.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:6:1: error: 'cin' was not declared in this scope
    6 | cin>>n;
      | ^~~
/in/foo.cc:10:1: error: 'cout' was not declared in this scope
   10 | cout<<a<<" "<<b;
      | ^~~~