foo.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
foo.cc: In function 'int main()':
foo.cc:6:2: error: 'cin' was not declared in this scope
    6 |  cin>>a>>b>>c;
      |  ^~~
foo.cc:8:3: error: 'cout' was not declared in this scope
    8 |   cout<<"yes"<<endl;
      |   ^~~~
foo.cc:8:16: error: 'endl' was not declared in this scope
    8 |   cout<<"yes"<<endl;
      |                ^~~~
foo.cc:10:4: error: 'cout' was not declared in this scope
   10 |    cout<<"no"<<endl;
      |    ^~~~
foo.cc:10:16: error: 'endl' was not declared in this scope
   10 |    cout<<"no"<<endl;
      |                ^~~~

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