/in/foo.cc:17:2: error: stray '#' in program
 }#include<iostream>
  ^
/in/foo.cc:17:3: error: 'include' does not name a type
 }#include<iostream>
   ^~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:20:5: error: redefinition of 'int main()'
 int main() {
     ^~~~
/in/foo.cc:4:5: note: 'int main()' previously defined here
 int main() {
     ^~~~