018期：16码≤≤03,05,07,09,11,12,18,22,23,26,28,33,36,39,40,42≥≥开：23对
019期：16码≤≤05,14,15,16,23,24,28,29,31,32,36,38,40,42,45,48≥≥开：27错
020期：16码≤≤05,07,08,12,16,18,23,26,27,30,38,41,42,44,45,47≥≥开：16对
021期：16码≤≤01,03,05,16,17,18,20,22,23,26,35,36,38,41,48,49≥≥开：39错
022期：16码≤≤04,15,16,19,20,21,24,27,31,33,34,35,36,37,38,39≥≥开：//