7、4、4、12算二十四点
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((7-4)*4)+12
(7-4)*(12-4)
((7-4)*4)+12
(7-4)*(12-4)
(4-7)*(4-12)
(4*(7-4))+12
4-((7-12)*4)
4-(4*(7-12))
4+(4*(12-7))
4+((12-7)*4)
(4*(12-7))+4
(4-12)*(4-7)
(4-7)*(4-12)
(4*(7-4))+12
4-((7-12)*4)
4-(4*(7-12))
4+(4*(12-7))
4+((12-7)*4)
(4*(12-7))+4
(4-12)*(4-7)
((12-7)*4)+4
12+((7-4)*4)
((12-7)*4)+4
12+((7-4)*4)
12-((4-7)*4)
(12-4)*(7-4)
12+(4*(7-4))
12-(4*(4-7))
12-((4-7)*4)
(12-4)*(7-4)
12+(4*(7-4))
12-(4*(4-7))
(7-4)*(12-4)
((7-4)*4)+12
(7-4)*(12-4)
(4-7)*(4-12)
(4*(7-4))+12
4-((7-12)*4)
4-(4*(7-12))
4+(4*(12-7))
4+((12-7)*4)
(4*(12-7))+4
(4-12)*(4-7)
(4-7)*(4-12)
(4*(7-4))+12
4-((7-12)*4)
4-(4*(7-12))
4+(4*(12-7))
4+((12-7)*4)
(4*(12-7))+4
(4-12)*(4-7)
((12-7)*4)+4
12+((7-4)*4)
((12-7)*4)+4
12+((7-4)*4)
12-((4-7)*4)
(12-4)*(7-4)
12+(4*(7-4))
12-(4*(4-7))
12-((4-7)*4)
(12-4)*(7-4)
12+(4*(7-4))
12-(4*(4-7))
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