Y add 49.2 sub mul 0.85 x_1 mul -5.7 mul sub mul -0.77 x_3 mul 0.8180000000000001 div sub add mul -0.366 x_3 mul -28.900000000000002 x_2 mul -4.0 log add mul 8.43 x_0 mul 6.890000000000001 abs add -26.1 mul -0.896 x_1 x_4 x_1