某企业为了促销，搞抽奖宣传活动，奖品为新款手机一部，抽奖规则如下：

　　（1）有n个盒子摆成一圈，盒子按顺时针方向依次编号为0，1，2，……，n-1。手机随机放在其中一个盒子中。（n为自然数）

　　（2）从0号盒子开始摸奖，顺时针方向计数，每遇到第m个盒子就摸奖一次。（m为自然数，m<n）

　　（3）直到重新摸到0号盒子为止。

-A company for promotional purposes, engage in lottery promotional activities, prizes for the new phones a lucky draw rules are as follows: (1) has n-boxes placed in a circle, box clockwise followed by numbered 0,1,2, ... ..., n-1. Were randomly placed in one of the phone box. (N is natural number) (2) the box number from 0 starting Mojiang, counting clockwise, when confronted with the first m-box on the Mojiang time. (M is natural number, m <n）

　　（3）直到重新摸到0号盒子为止。