268期：((02,05,10,15,16,23,24,25,26,34,37,38,41,44,45,47))开：10OK
269期：((10,16,19,20,24,28,29,30,34,35,37,43,44,46,48,49))开：31x
270期：((03,04,08,10,13,19,22,23,33,34,37,38,42,43,45,46))开：35x
271期：((03,06,07,09,11,14,17,19,23,24,26,29,34,35,43,48))开：06OK
272期：((05,10,12,15,18,21,24,25,30,31,32,34,42,44,47,48))开：//