设n个人围坐在一个圆桌周围，现在从第s个人开始报数，数到第m个人，让他出局；然后从出局的下一个人重新开始报数，数到第m个人，再让他出局，……，如此反复直到所有的人全部出局为止。-Set n individuals sitting around a round table, and now reported from the starting number of individuals s, m the number to the individual, let him out　then out the next person to start reporting the number to the number m of individuals, let him out, ... ..., so repeatedly until all the people all out of date.