a-a a-b aaa aab aak aas ab- aba abb abk abs aka akb akk aks as- asa asb ask ass baa bab bak bas bba bbb bbk bbs bka bkb bkk bks bsa bsb bsk bss ka- kaa kab kak kas kba kbb kbk kbs kkb kkk kks ksa ksb ksk kss saa sab sak sas sba sbb sbk sbs sk- ska skb skk sks ss- ssa ssb ssk sss

a-ak aaaa aaab aaas aaba aabb aaka aasa aass abaa abab abak abas abb- abba abbb abbs abs- absa abss akaa akas akka aksa asaa asab asak asas asba aska asks assa assk asss baaa baak baas baba babb babs bak- baka baks basa bask bass bbas bbbb bbbs bsaa bsas kaaa kaab kaak kaas kaba kabb kaka kakk kaks kas- kasa kasb kask kass kbaa kbab kbak kbas kbba kbbb kbbk kbbs kbkb kbkk kbsa kbsb kbsk kbss kkaa kkba kkbb kkbs kkkk kksa kkss ksab ksak ksas ksba ksbs kska kskb kskk ksks kssa ksss saab saak saas saba sabb sabs saka sakk saks sasa sask sass sbaa sbas sbbs sbsa skab skss ssaa ssab ssas sssa sssb ssss

-aaa- aaaas aaasa aaass aabaa aabba abaab ababa ababs abaka abasa abask abass abbas akaba akasa akbas akkas asaak asaba asaka asasa asbak askas asksa assab assas babak babas babbs babka babsk bakka baksa basab basak baska basks bassa bsaba kaaba kaaks kabaa kabab kabak kabas kabba kabsa kakas kakka kasab kasak kasba kaska kassa saaba saabs saasa sabak sabas sabsa sakka saksa sasak saska sassa sssss

aaaaba ababsa abakas abassa abbasa abbass akaska akassa akbaba akkaba assaka baabaa babkas bbbbbb kabaka kakkak kasaba kasasa kassab sabaka sabbas sakaba sassak ssabsa

abbasak akasaka bbbbbbb kabakas kas-kas sssssss

bbbbbbbb sakasaka

abakabaka assabaska baabaabaa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb