MAYBE
138.69/55.45	MAYBE
138.69/55.45	
138.69/55.45	Problem:
138.69/55.45	 0(0(0(0(x1)))) -> 0(0(0(1(x1))))
138.69/55.45	 1(0(0(1(x1)))) -> 0(1(0(0(x1))))
138.69/55.45	
138.69/55.45	Proof:
138.69/55.45	 Open
138.69/55.45	EOF