-a^{c0}_{a0} b^{v0,v1}_{c1,a1} c^{a2}_{v1} gamma1^{a1}_{a2} a+(c1) a+(a0) a-(v0) a-(c0)
+a^{c0}_{a1} b^{v0,v1}_{c1,a0} c^{a2}_{v1} gamma1^{a1}_{a2} a+(c1) a+(a0) a-(v0) a-(c0)