a-ak aaaa aaab aaal aaba aabb aabl aaka aala aall abaa abab abak abal abb- abba abbb abla abza akaa akal akka alaa alak alal alaz alb- alba alk- alka alkb all- alla alll alza aza- azab azal azaz azlk azza baaa baak baal baaz baba babb bak- baka bakl bala balk ball baza bbbb bblb blaa blab blak blaz blkb bzzz kaaa kaab kaak kaal kaba kabb kabz kaka kakk kala kalb kalk kall kalz kaza kazz kbaa kbab kbak kbal kbaz kbba kbbb kbbk kbbl kbbz kbkb kbkk kbkl kbkz kbla kblb kbll kblz kbzz kkaa kkal kkba kkbb kkbl kkbz kkkk kklb kkll kklz kkzz klaa klab klak klal klaz klbb klbl klka klkk klkl klla kllb kllk klza klzk klzz kzal kzaz kzbb kzbk kzbl kzbz kzkz kzla kzlb kzlk kzlz kzza kzzb kzzk kzzz laaa laak laal laba laka lala lall laza lkab lkal llll zaal zaba zaka zakk zal zala zalk zaza zzzz