难难难,自留地。
323:01,02,03,10,11,12,13,17,22,25,26,29,30,34,35,37,38,46,47,49,(共20个)
322:04,07,08,09,16,18,19,21,22,27,28,30,31,34,35,39,40,43,44,45,(共20个)羊47 ×
321:04,08,09,14,16,18,19,23,26,27,28,31,32,35,38,39,40,44,45,47,(共20个)羊23 √
320:01,02,04,08,12,13,16,17,20,21,26,28,29,30,37,38,40,44,48,49,(共20个)虎28 √