Y add -4.05 sub mul -0.976 mul mul x_2 x_1 x_6 sub mul -0.533 exp sub mul 19.700000000000003 x_3 mul -1.85 log add 61.400000000000006 mul -5.9 x_4 add mul -0.979 log add 55.6 mul -0.023 x_5 mul 38.800000000000004 x_0