197.03/50.03	MAYBE
197.03/50.03	
197.03/50.03	Problem:
197.03/50.03	 a(x1) -> x1
197.03/50.03	 a(a(a(b(x1)))) -> a(b(b(b(a(a(a(x1)))))))
197.03/50.03	
197.03/50.03	Proof:
197.03/50.03	 Open
197.03/50.04	EOF