/in/foo.c: In function 'main':
/in/foo.c:11:29: error: stray '\' in program
   printf("%d is a primer!",i\n);
                             ^
/in/foo.c:11:30: error: expected ')' before 'n'
   printf("%d is a primer!",i\n);
                              ^
/in/foo.c:13:33: error: stray '\' in program
   printf("%d is not a primer!",i\n);
                                 ^
/in/foo.c:13:34: error: expected ')' before 'n'
   printf("%d is not a primer!",i\n);
                                  ^
/in/foo.c:16:1: error: expected ';' before '}' token
 }
 ^