Y add mul pow x4 c mul pow add c x3 c pow add mul c x3 add mul c x4 cos cos x3 c add mul x3 mul pow x4 c mul pow add c x3 c pow add mul c x3 add mul c x4 cos cos x3 c mul c mul x3 mul pow x4 c mul pow add c x3 c pow add mul c x3 add mul c x4 cos cos x3 c