用12,-12,3,-1算24或-24

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用12,-12,3,-1算24或-24

用12,-12,3,-1算24或-24
用12,-12,3,-1算24或-24

用12,-12,3,-1算24或-24
-12-((3/-1)*12) -12-((3*-1)*12) -12-(3*(-1*12)) ((-12*3)/-1)-12 (-12*(3/-1))-12 ((-12*3)*-1)-12 (-12*(3*-1))-12 -12-((-1*12)*3) -12-(-1*(12*3)) -12-((-1*3)*12) -12-(-1*(3*12)) (-12/(-1/3))-12 ((-12/-1)*3)-12 ((-12*-1)*3)-12 (-12*(-1*3))-12 (3*12)-(-12/-1) (3*12)-(-12*-1) (3*12)-(-1*-12) ((3*-12)+12)/-1 ((3*-12)+12)*-1 ((3*-12)/-1)-12 (3*(-12/-1))-12 ((3*-12)*-1)-12 (3*(-12*-1))-12 (3/(-1/-12))-12 ((3/-1)*-12)-12 ((3*-1)*-12)-12 (3*(-1*-12))-12 (-1*12)-(-12*3) -1*(12+(-12*3)) (-1*12)-(3*-12) -1*(12+(3*-12)) ((-1*-12)*3)-12 (-1*(-12*3))-12 -1*((-12*3)+12) ((-1*3)*-12)-12 (-1*(3*-12))-12 -1*((3*-12)+12)