a^{c1,v0}_{c0,a1} b^{a0}_{c2} c^{a2}_{v0} gamma1^{a1}_{a2} a+(c0) a+(c2) a-(a0) a-(c1)
-a^{c1,v0}_{c0,a1} b^{a2}_{c2} c^{a0}_{v0} gamma1^{a1}_{a2} a+(c0) a+(c2) a-(a0) a-(c1)