a^{v0}_{a0} b^{v1}_{a1} c^{a2}_{v1} gamma1^{a1}_{a2} a+(a0) a-(v0)
-a^{v1}_{a0} b^{v0}_{a1} c^{a2}_{v1} gamma1^{a1}_{a2} a+(a0) a-(v0)
-a^{v0}_{a1} b^{v1}_{a0} c^{a2}_{v1} gamma1^{a1}_{a2} a+(a0) a-(v0)
+a^{v1}_{a1} b^{v0}_{a0} c^{a2}_{v1} gamma1^{a1}_{a2} a+(a0) a-(v0)