-a^{c0,v0}_{c4,a0} b^{c2,c4}_{c1,a1} c^{a2}_{c3} gamma1^{a1}_{a2} a+(c1) a+(c3) a+(a0) a-(v0) a-(c2) a-(c0)
+a^{c0,v0}_{c4,a1} b^{c2,c4}_{c1,a0} c^{a2}_{c3} gamma1^{a1}_{a2} a+(c1) a+(c3) a+(a0) a-(v0) a-(c2) a-(c0)