数量4
捆绑法A(3,3)=6，A(4,4)=24，24*6=144插空法A(3,3)=6,A(4,3)=24,24*6=144
捆绑法A(3,3)=6，A(4,4)=24，24*6=144
插空法A(3,3)=6,A(4,3)=24,24*6=144
捆绑法A(3,3)=6，A(4,4)=24，24*6=144插空法A(3,3)=6,A(4,3)=24,24*6=144
捆绑法A(3,3)=6，A(4,4)=24，24*6=144
插空法A(3,3)=6,A(4,3)=24,24*6=144
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