A dynamic open four of the previous period, tail tail, 0, 1, 2, 3, with open zero tail end. Recent four tail and five mantissa exchange, has four wheel, the current focus on four mantissa continue or three terminal, such increased fortified with tail current. From the tail movements, 0, 1, 2, 3, belong to four number mantissa, this may even number mantissa transformation, mainly focus on two consecutive Numbers. Mantissa key 0, 3, 4, other mantissa attention...