280期：((02/03/09/10/12/17/19/21/28/33/34/36/39/42/44/45))开：42中
281期：((04/06/12/18/22/23/24/25/26/29/31/34/38/39/41/48))开：47错
282期：((01/03/07/13/17/18/20/22/23/27/29/30/32/35/36/41))开：41中
283期：((02/05/07/11/15/18/19/22/25/28/29/33/34/41/45/49))开：45中
284期：((01/04/05/12/13/16/26/29/31/33/35/36/45/46/48/49))开：？？