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