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