foo.cc:1:20: warning: extra tokens at end of #include directive
 #include <iostream>;
                    ^
foo.cc: In function 'int main()':
foo.cc:9:15: error: 'end1' was not declared in this scope
  cout <<a*b<< end1;
               ^~~~
foo.cc:9:15: note: suggested alternative: 'enum'
  cout <<a*b<< end1;
               ^~~~
               enum

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