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