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2014-10-21T10:36:49+03:00
12+12x{12+12x[12+12x(12x12-122)]}+12x12=12+12x{12+12x[12+12x(144-122)]}+12X12=12+12x[12+12x(12+12x22)]+12X12=12+12x[12+12x(12+264)]+12X12=12+12x(12+12x276)+12X12=12+12x(12+3312)+12X12=12+12x3324+12X12=12(1+3324+12)=12X3337=40044