Y add 81.2 sub mul -77.7 mul sub mul 61.5 pow3 add mul -49.300000000000004 div pow3 add 0.879 mul 68.4 x_5 x_3 mul 0.334 x_1 mul 0.8320000000000001 exp sub mul 8.09 x_0 mul -0.211 x_6 x_4 mul -0.228 x_2