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2014-07-25T11:03:57+03:00
12²+[(2^4)3÷(2^9)^7+5^60÷(5^4)^15]=
=144+(2^12÷2^63+5^60÷5^60)=
=144+2^-51+5^0=144+2^-20+1=145+2^-51