(2^2 + 5·3)^2 - (9^8/9^6 + ((7 + 2·5)^2 - 3·8·3^2) + 13)+
- (12^2 - 5^2 + 13·5)=
=19^2 - (81 + (289 - 216) + 13) - (144 - 25 + 65)=
=361 - (81 + 73 + 13) - 184=
=361 - 167 - 184 = 10
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