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