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