309期：16码≤≤04,06,10,12,16,17,21,22,25,30,33,38,42,43,44,46≥≥开：06对
310期：16码≤≤08,10,14,17,18,23,24,29,31,32,33,34,39,40,41,46≥≥开：16错
311期：16码≤≤07,09,11,17,18,19,21,22,23,27,33,35,38,41,47,48≥≥开：37错
312期：16码≤≤01,05,06,09,10,15,16,25,27,35,36,38,39,41,43,49≥≥开：//