Y add 0.513 mul add sub add sub mul -33.0 abs add 8.200000000000001 mul -0.68 x_3 mul 9.600000000000001 x_2 mul 6.13 x_4 mul 2.3000000000000003 x_4 mul -91.2 x_0 mul x_2 sub mul 8.71 x_1 mul -0.868 x_3