MAYBE
31.55/10.35	MAYBE
31.55/10.35	
31.55/10.35	Problem:
31.55/10.35	 a(x1) -> x1
31.55/10.35	 a(b(x1)) -> b(b(b(a(c(x1)))))
31.55/10.35	 b(x1) -> x1
31.55/10.35	 c(c(x1)) -> a(x1)
31.55/10.35	
31.55/10.35	Proof:
31.55/10.35	 Open
31.55/10.36	EOF