/in/foo.c: In function 'main':
/in/foo.c:16:12: warning: missing terminating ' character
     printf('%d", fanshu);
            ^
/in/foo.c:16:12: error: missing terminating ' character
     printf('%d", fanshu);
            ^~~~~~~~~~~~~~
/in/foo.c:17:5: error: expected expression before 'return'
     return 0;
     ^~~~~~
/in/foo.c:18:1: error: expected ';' before '}' token
 }
 ^