Y add -2.36 mul add add mul -0.302 mul x_4 cos add 0.9 mul 9.98 x_1 mul 70.3 x_2 mul 67.2 mul add sub mul -0.81 x_1 sub mul 22.200000000000003 pow2 add -0.77 mul 65.5 x_1 mul -0.35100000000000003 x_3 mul -1.76 x_4 x_3 x_0