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7.48+3.17-(2.48-6.83) 7.6x7/4+17.5x6/25 1333305/2x88+880x133339/43.6x11.1+1.2x66.7 7.2x14.5+17x2.8 256x254/255+254x1/25512.8x34.5+12.8x12.3+46.8x87.2

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