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((c*2.54)%2F(%E2%88%9A(h*2.54)*(((((w)%2F(2.2)))%2F((((h*2.54)%2F(100)))%5E(2))))%5E(((2)%2F(3))))) where c%3D30%2C h%3D70 and w%3D140
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