Y add -71.3 div div x_0 add mul 49.6 sin add -69.8 mul -5.04 x_3 add sub mul -67.3 x_1 sub sub mul -22.200000000000003 exp add 5.64 mul 59.0 x_4 mul 2.15 x_6 mul 9.84 x_5 mul -61.300000000000004 exp add -0.307 mul 0.757 x_7 x_2