Markings that are possible with a toe punch:
1. none
2. LO (left outside)
3. LI (left inside)
4. RO (right outside)
5. RI (right inside)
6. LO-LI
7. LO-LI-RO
8. LO-LI-RI
9. LI-RO
10. LI-RI
11. LI-RO-RI
12. RO-RI
13. RO-LO
14. RI-LO
15. RI-RO-LO
16. RO-RI-LO-LI
.