Y add 6.9 add mul -0.241 x_3 mul -0.637 div add mul 62.800000000000004 x_1 mul -7.5600000000000005 mul x_0 div sub mul 50.2 mul x_1 x_1 mul -5.7 abs sub mul 8.03 pow2 add 0.181 mul 0.091 x_1 mul -18.1 x_2 x_3 x_4