= 5^140 : (5^2)^70 + (2^3)^32 : (2^4)^24 + (10^2)^25 : 10^48 - 10^2 =
= 5^140 : 5^140 + 2^96 : 2^ 96 + 10^50 : 10^48 - 10^2 =
= 1 + 1 + 10^2 - 10^2 =
= 2 + 0 =
= 2
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