Y add 84.9 add add mul -0.419 exp sub mul 0.929 x_4 mul -28.900000000000002 x_1 mul 83.10000000000001 mul abs add -81.10000000000001 mul 0.13 div exp add 0.274 mul -6.2700000000000005 x_3 cos add 0.685 mul 7.45 x_0 x_0 mul 1.67 x_2