291期：16码≤≤03,04,07,11,12,17,25,26,27,29,31,38,41,44,48,49≥≥开：31对
292期：16码≤≤01,02,07,09,10,11,12,19,21,25,33,36,37,42,44,45≥≥开：26错
293期：16码≤≤01,03,04,07,08,10,14,25,27,31,34,38,42,43,45,47≥≥开：17错
294期：16码≤≤04,07,08,09,19,20,21,24,25,27,34,35,36,38,45,46≥≥开：//