a-a a-b aaa aab aak aao ab- aba abb abk abo aka akb akk ako aoa aob aok aoo baa bab bak bao bba bbb bbk bbo bka bkb bkk bko boa bob bok boo ka- kaa kab kak kao kba kbb kbk kbo kkb kkk koa kob kok koo oaa oab oak oao ob- oba obb obk obo oka okb okk oko oo- ooa oob ook ooo

a-ak a-ok aaaa aaab aaba aabb aaka aaoo abaa abab abak abb- abba abbb abbo aboa abob abok aboo akaa akao akka akko akok aoba baaa baak baba babb babo bak- baka bako bbbb boab boak boba bobb bobo boka boko boob book kaaa kaab kaak kaba kabb kabo kaka kakk kako kaoa kaok kbaa kbab kbak kbba kbbb kbbk kbbo kbkb kbkk kbko kboa kbob kbok kboo kkaa kkba kkbb kkbo kkkk kkoa kkob kkoo koab koak koba kobb kobk kobo koka kokb kokk koko koob kook kooo obak obba obbo obkb obok okak okka okko okok ooaa ooak ooba oooo

-aaa- aabaa aabba aakko abaab ababa abaka abako abkoo aboab abobo abook akaba akabo akaoa akobo akoka akoko babak babka baboo bakka bakoa bbook bo-bo bobak bobko bobok bokaa bokko bokok booba booko k-a-o kaaba kabaa kabab kabak kabba kabob kakao kakka kakko kako- kaooa ko-ko kokab kokak kokka kokko kooba kooka obaba okaka okobo ooooo

aaaaba aka-bo akbaba akkaba baabaa baobab bbbbbb boabab booboo kabaka kabook kakkak koakoa kobako koboko kokako kookoo oooooo

bbbbbbb bok-bok boo-boo boobook kakaako o-o-a-a

bbbbbbbb bo-bo-bo

abakabaka baabaabaa obabakoak

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb