-1/2 a^{a2}_{c0,a0,a1} b^{a3}_{} lambda2^{a0,a1}_{a2,a3} a+(c0)
-a^{a1}_{c0,a0,a2} b^{a3}_{} gamma1^{a2}_{a3} a+(c0) a+(a0) a-(a1)