a,4^8:4^5-(1^30+17):3^2 b,4.5^2-3.2^3 c,150-[10^2-(14-11)^2.2007] d,15.2^3+4.3-5.7 e,3^3.118-3^3.18 f,12:{390:[500-(125+35.7)]}

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