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只有137 146 245 236這四組數三個數和為11 剩下的數是89所以把8 9分別填入最左和最右的兩個圓中 8+3=11 9+2=11最左和最右的兩個圓要填入3 2 236這個組合就不能用了,下麵是中間兩個相交的圓填入1和4 上面6下麵7 5
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