Y add -67.9 div sub mul -77.4 x_4 mul 0.257 div add add mul 0.8200000000000001 x_0 mul 6.4 x_4 mul -3.61 div div sub mul 5.7700000000000005 x_3 mul -6.8 x_2 x_1 mul sqrt add 24.0 mul 1.83 x_8 sub mul -42.1 x_7 mul 5.79 x_9 x_5 x_6