Y add 8.16 add mul 0.069 x_0 mul 2.17 mul x_3 sub add add mul -4.53 div pow3 add 0.66 mul -90.2 x_4 abs sub mul 17.400000000000002 x_2 mul -8.290000000000001 mul exp add -0.422 mul 7.71 x_2 pow3 add 14.100000000000001 mul -2.71 x_1 mul -5.28 x_3 mul -6.95 x_1 mul 7.3500000000000005 x_4