Y add -0.56 mul exp add mul -0.9580000000000001 x_2 mul -67.8 pow2 add 0.47000000000000003 mul 0.38 x_3 mul mul x_2 mul x_3 abs add -87.80000000000001 mul -5.11 div sub mul -6.42 x_4 mul 50.0 x_1 x_2 sub mul 4.13 x_1 mul -0.14100000000000001 pow2 add 15.5 mul 8.43 x_0