| 1. AAABBB | 8. ABBAAB | 15. BABABA |
| 2. AABABB | 9. ABBABA | 15. BABABA |
| 3. AABBAB | 10. ABBBAA | 17. BBAAAB |
| 4. AABBBA | 11. BAAABB | 18. BBAABA |
| 5. ABAABB | 12. BAABAB | 19. BBABAA |
| 6. ABABAB | 13. BAABBA | 20. BBBAAA |
| 7. ABABBA | 14. BABAAB |
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