279期：<<01,03,07,09,12,18,21,25,27,31,36,42,43,47,48,49>>开：27有
280期：<<06,10,11,14,16,17,19,21,28,31,32,33,34,46,47,48>>开：07无
281期：<<02,03,05,06,07,10,16,17,24,26,31,32,33,34,37,43>>开：24有
282期：<<01,03,05,06,10,12,13,16,20,26,27,28,30,35,37,42>>开：37有
283期：<<02,12,19,21,22,24,26,31,32,35,36,37,40,42,43,45>>开：10无
284期：<<02,04,07,10,24,25,27,28,29,33,34,38,40,45,48,49>>开：88