/in/foo.c: In function 'main':
/in/foo.c:5:14: error: expected ')' before 'enjoy'
     printf(""enjoy yourself"\n");
              ^~~~~
/in/foo.c:5:12: warning: zero-length gnu_printf format string [-Wformat-zero-length]
     printf(""enjoy yourself"\n");
            ^~
/in/foo.c:6:12: error: expected ')' before 'enjoy'
   printf(""enjoy yourself"\n");
            ^~~~~
/in/foo.c:6:10: warning: zero-length gnu_printf format string [-Wformat-zero-length]
   printf(""enjoy yourself"\n");
          ^~
/in/foo.c:7:12: error: expected ')' before 'enjoy'
   printf(""enjoy yourself"\n");
            ^~~~~
/in/foo.c:7:10: warning: zero-length gnu_printf format string [-Wformat-zero-length]
   printf(""enjoy yourself"\n");
          ^~