In the process of same level m—subsequence formed based on m—subsequence.the main question is to judge whether the lines of two sets of conjugate states will be intercrossed in the circle. In this passage, all situations and digital in this circle are built a relationship of reflection, and then each set of conjugate state has a code.Through this code.whether the lines of any two sets of conju—gate states intercrossed in the circle will be judged by system.In this way, the number of subse—quence can be calculated conveniently, and its program made as well.Then, the output of all the subsequences will be realized.