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