Y add 1.01 sub mul 0.31 div mul pow2 add -0.5 mul -23.400000000000002 x_3 add mul 8.790000000000001 x_1 sub sub mul 6.890000000000001 x_2 mul 3.27 mul div x_9 x_6 x_4 mul -0.727 exp sub mul 0.429 x_5 mul -6.8 x_0 x_7 mul -77.7 x_8