Vul de getallen verder in, met sprongen van 3 [2]
Telrij
| 1. | 20 | < | 23 | < | < | < | |||
| 2. | 13 | < | < | < | 22 | < | |||
| 3. | 4 | < | 7 | < | < | < | |||
| 4. | 12 | < | 15 | < | < | < | |||
| 5. | < | < | < | 14 | < | 17 | |||
| 6. | 25 | < | < | 31 | < | < | |||
| 7. | < | < | 18 | < | < | 24 | |||
| 8. | < | 9 | < | < | 15 | < | |||
| 9. | 15 | < | 18 | < | < | < | |||
| 10. | < | 11 | < | < | < | 20 |