Y add 52.1 add sub mul 4.2700000000000005 div div add add sub mul 0.77 x_7 mul 0.3 div x_2 x_1 add mul -0.77 x_6 mul -3.36 x_4 mul -13.8 pow2 add 0.456 mul -0.781 x_5 x_3 x_0 mul -47.2 x_0 mul -19.0 x_0