/in/foo.cc:5:13: error: stray '\' in program
    5 | cout<<"O  O"\n;
      |             ^
/in/foo.cc:6:12: error: stray '\' in program
    6 | cout<<"O O"\n;
      |            ^
/in/foo.cc:7:11: error: stray '\' in program
    7 | cout<<"OO"\n;
      |           ^
/in/foo.cc:8:12: error: stray '\' in program
    8 | cout<<"O O"\n;
      |            ^
/in/foo.cc:9:13: error: stray '\' in program
    9 | cout<<"O  O"\n;
      |             ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:5:1: error: 'cout' was not declared in this scope
    5 | cout<<"O  O"\n;
      | ^~~~
/in/foo.cc:2:1: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
    1 | #include <stdio.h>
  +++ |+#include <iostream>
    2 | using namespace std;
/in/foo.cc:10:10: error: expected ';' before '}' token
   10 |  return 0
      |          ^
      |          ;
   11 |  }
      |  ~