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Mul x2 Mul Mul tan Mul sec Add x0 sech Add x0 atanh x1 Pow 3 x0 sec Mul sec Add x0 sech Add x0 atanh x1 Pow 3 x0 Add Mul Pow 3 x0 Mul Mul tan Add x0 sech Add x0 atanh x1 sec Add x0 sech Add x0 atanh x1 Add 1 Mul tanh Add x0 atanh x1 Mul -1 sech Add x0 atanh x1 Mul sec Add x0 sech Add x0 atanh x1 Mul Pow 3 Add x0 -1 4.09861228866811 