一组样例
输入: 1 11
22 1256
正确输出:75
输出 :0
by Chen小阳啊 @ 2023-04-11 18:36:48
@[Chen小阳啊](/user/557927) m=min(n,m)
by seanlsy @ 2023-04-11 18:41:46
@[seanlsy](/user/674247) 谢了
by Chen小阳啊 @ 2023-04-11 18:42:44