273期：<<01/04/12/15/17/18/24/27/28/29/30/31/32/38/39/44>>开：04中
274期：<<03/06/07/09/13/14/17/20/23/31/37/38/44/45/46/49>>开：44中
275期：<<02/05/06/10/12/13/15/16/17/28/33/34/37/39/43/49>>开：45错
276期：<<02/05/08/09/10/17/23/25/27/28/29/30/31/36/37/42>>开：09中
277期：<<01/07/08/13/16/19/20/26/29/33/35/36/41/43/46/48>>开：？？