Y add -0.966 sub sub sub mul 29.400000000000002 div x_1 pow3 add -0.402 mul -0.406 x_4 mul -43.900000000000006 log add 35.6 mul 0.705 x_4 add mul -3.87 x_2 sub mul -0.8300000000000001 x_3 mul 33.1 div x_3 add mul 7.5 x_2 mul -0.9460000000000001 x_4 mul 0.496 x_0