-a^{c0,v0}_{a0,a2} b^{v2}_{c1} c^{a3,v1}_{a1,v2} gamma1^{a2}_{a3} a+(c1) a+(a0) a+(a1) a-(v1) a-(v0) a-(c0)
+a^{c0,v2}_{a0,a2} b^{v0}_{c1} c^{a3,v1}_{a1,v2} gamma1^{a2}_{a3} a+(c1) a+(a0) a+(a1) a-(v1) a-(v0) a-(c0)