/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:6:5: error: 'cin' was not declared in this scope
    6 |     cin >> x >> y;
      |     ^~~
/in/foo.cc:7:5: error: 'cout' was not declared in this scope
    7 |     cout << x + y;
      |     ^~~~