254期：16码≤≤02,03,06,13,15,16,18,31,32,38,39,41,42,44,46,47≥≥开：13对
255期：16码≤≤03,04,06,07,09,13,19,21,25,29,30,37,40,42,43,49≥≥开：33错
256期：16码≤≤01,02,05,09,12,13,15,16,18,20,21,22,31,41,46,49≥≥开：35错
257期：16码≤≤03,06,07,08,13,20,21,25,26,29,34,37,39,42,44,47≥≥开：//