Y add 17.7 mul log add 23.5 mul -0.22 x_5 sub mul -42.7 log add 78.30000000000001 mul -6.0600000000000005 x_4 mul 4.08 mul sub mul -81.80000000000001 x_4 mul 3.48 abs add 73.4 mul 4.66 div sub mul -0.083 x_0 mul 5.05 exp add -2.5 mul -0.017 x_2 x_3 x_1