a^{c1,a0}_{c0,a1} b^{a2}_{c3} c^{c3,v1}_{c2,v0} gamma1^{a1}_{a2} a+(c0) a+(c2) a+(v0) a-(v1) a-(a0) a-(c1)
-a^{c0,a0}_{c3,a1} b^{a2}_{c1} c^{c3,v1}_{c2,v0} gamma1^{a1}_{a2} a+(c1) a+(c2) a+(v0) a-(v1) a-(a0) a-(c0)