Y add 20.3 sub sub sub mul 0.8160000000000001 x_6 add mul -4.05 x_5 sub mul -1.6 mul x_1 x_3 mul -7.8100000000000005 exp add -61.5 mul 81.80000000000001 x_0 mul 0.41100000000000003 x_4 add mul -0.678 x_6 mul -0.257 x_2