(START) |- 0
0 q 1
0 x 0
1 z 2
2 q 3
3 z 0
3 x 3
0 -| (FINAL)
1 -| (FINAL)
2 -| (FINAL)
3 -| (FINAL)
0 z 4
1 q 4
1 x 4
2 x 4
2 z 4
3 q 4
4 q 4
4 x 4
4 z 4
