Finite state machines: Mealy
	Moore machines: output is function of state
	Mealy machines: output is function of state and input
		output is shown on edge
	Example:
	In state 00, input of 1 produces output of 1: 1/1							x = 1, z = 1
	Notice numbering of states: can select any combination of 2 bits
	Input	x		1	1	0	1	1	0
	State	q1	0	0	0	1	0	0	1
		q0	0	1	1	1	0	1	1
	Output	z	0	1	0	1	1	1	1