-a^{a0}_{a2} b^{c0,a1}_{c2,v0} c^{c2,a3}_{c1,v1} gamma1^{a2}_{a3} a+(c1) a+(v0) a+(v1) a-(a1) a-(a0) a-(c0)
+a^{a0}_{a2} b^{c0,a3}_{c2,v0} c^{c2,a1}_{c1,v1} gamma1^{a2}_{a3} a+(c1) a+(v0) a+(v1) a-(a1) a-(a0) a-(c0)