Y add 52.7 div abs add -21.1 mul 44.2 x_3 sub add mul -6.140000000000001 div x_3 inv add -7.930000000000001 mul -0.058 x_4 sub mul 0.529 div add add mul -0.984 x_2 mul -5.3 x_2 mul 2.87 abs add -0.851 mul -55.6 x_4 x_1 mul 0.723 x_1 mul 0.778 x_0