/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:5:9: error: 'cin' was not declared in this scope
    5 |         cin>>a>>b;
      |         ^~~
/in/foo.cc:6:5: error: 'cout' was not declared in this scope
    6 |     cout<<a+b;
      |     ^~~~