篮球联赛的题怎么做的

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可以分几个部分来详细讲解，联赛积分计算、胜负场次问题、比赛胜负概率预测、赛程安排与轮转问题、比赛胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负胜负