/in/foo.cc: In function 'int main()':
/in/foo.cc:30:6: error: expected primary-expression at end of input
  cout<
      ^
/in/foo.cc:30:6: error: expected '}' at end of input
/in/foo.cc: In function 'int qwer(int)':
/in/foo.cc:19:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^