Y add -2.68 add mul 2.2600000000000002 exp add -0.833 mul -78.0 div exp add -73.10000000000001 mul -0.66 x_1 pow2 add 0.18 mul 42.300000000000004 x_2 mul 0.307 div div sub mul 58.800000000000004 x_3 mul 0.643 x_3 x_2 exp add 0.251 mul 0.96 x_0