Y add 6.0 sub mul 0.448 tan add 69.0 mul -1.71 x_2 sub mul -0.23 pow3 add -72.3 mul 4.89 mul x_3 x_1 mul -68.0 div sub mul 0.054 x_0 mul -1.6400000000000001 div x_3 pow2 add 7.800000000000001 mul 43.7 x_1 x_1