195.62/50.01	MAYBE
195.62/50.01	
195.62/50.01	Problem:
195.62/50.01	 a(x1) -> x1
195.62/50.01	 a(b(x1)) -> b(b(c(a(x1))))
195.62/50.01	 b(x1) -> x1
195.62/50.01	 c(c(c(x1))) -> a(x1)
195.62/50.01	
195.62/50.01	Proof:
195.62/50.01	 Open
195.62/50.02	EOF