28
| 1 – I | 11 – XI | 21 – XXI |
| 2 – II | 12 – XII | (…) |
| 3 – III | 13 – XIII | 30 – XXX |
| 4 – IV | 14 – XIV | 40 – XL |
| 5 – V | 15 – XV | 50 – L |
| 6 – VI | 16 – XVI | 60 – LX |
| 7 – VII | 17 – XVII | 70 – LXX |
| 8 – VIII | 18 – XVIII | 80 – LXXX |
| 9 – IX | 19 – XIX | 90 – XC |
| 10 – X | 20 − XX | 100 − C |