a-a a-b a-z aaa aab aas aaz ab- aba abb abs abz as- asa asb ass asz az- aza azb azs azz baa bab bas baz bba bbb bbs bsa bsb bss bza bzs bzz saa sab sas saz sba sbb sbs ss- ssa ssb sss ssz sza zaa zab zas zaz zbb zbs zsa zsz zzs zzz

aaaa aaab aaas aaba aabb aasa aass abaa abab abas abb- abba abbb abbs abs- absa abss abza asaa asab asas asba assa asss aza- azab azas azaz azza baaa baas baaz baba babb babs basa bass baza bbas bbbb bbbs bsaa bsas bzzz saab saas saaz saba sabb sabs sasa sass saza sbaa sbas sbbs sbsa ssaa ssab ssas sssa sssb ssss szss zaba zaza zsss zzzs zzzz

-aaa- aaaas aaasa aaass aabaa aabba abaab ababa ababs abasa abass abaza abbas asaba asasa assab assas babas babbs basab bassa bazas bsaba saaba saabs saasa sabas sabsa sassa sazaa sssss szasz za-za zazas zzzzz

aaaaba ababsa abassa abbasa abbass azzaba baabaa bbbbbb sabbas ssabsa szabas zababa zsazsa

bbbbbbb sssssss

bbbbbbbb

abba-zaba baabaabaa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb bzzzzzzzzzzzzzz