foo.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
foo.cc: In function 'int main()':
foo.cc:6:4: error: 'cin' was not declared in this scope
    6 |    cin>>a>>b;
      |    ^~~
foo.cc:7:4: error: 'cout' was not declared in this scope
    7 |    cout<<a+b;
      |    ^~~~

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