168期：<<01,07,16,17,20,21,29,35,38,39,40,41,43,44,45,49>>开：17中中中
169期：<<02,05,09,14,17,18,20,21,23,31,36,40,42,43,44,47>>开：40中中中
170期：<<01,03,06,07,08,14,19,25,28,31,32,34,36,43,46,49>>开：09错错错
171期：<<01,02,04,06,08,11,12,17,18,22,31,35,38,42,44,47>>开：37错错错
172期：<<04,09,12,13,16,26,32,33,34,38,40,42,44,45,46,49>>开：中？