016期：((02,05,11,12,13,20,26,28,30,32,33,36,39,47,48,49))开：12中中中
017期：((01,04,09,10,11,15,17,21,25,26,28,30,35,39,42,47))开：04中中中
018期：((03,04,07,10,11,15,17,19,22,24,32,33,39,41,43,48))开：31错错错
019期：((01,03,04,07,09,12,16,19,22,27,29,33,34,42,47,49))开：40错错错
020期：((04,07,08,10,17,22,29,34,35,36,39,40,41,44,45,46))开：==？