050期：<<01,03,08,11,12,23,24,25,26,27,29,35,38,39,40,44>>开：40中中中
051期：<<05,08,10,15,17,19,24,26,28,33,35,37,41,47,48,49>>开：28中中中
052期：<<12,13,18,21,25,29,30,32,34,36,37,39,40,43,44,46>>开：22错错错
053期：<<02,03,07,13,15,16,18,22,24,28,29,30,33,35,39,40>>开：中？