a-a a-b aaa aab aaf aak ab- aba abb abf abk af- afa afb aff afk aka akb akk baa bab baf bak bba bbb bbf bbk bfa bfb bff bka bkb bkf bkk faa fab faf fak fba fbb fbf fbk ffa fff ffk fka fkb fkf fkk ka- kaa kab kaf kak kba kbb kbf kbk kfa kff kkb kkk

a-ak aaaa aaab aaaf aaba aabb aafa aafb aaff aaka abaa abab abaf abak abb- abba abbb abff afaa afak affa afka akaa akka baaa baaf baak baba babb baff bak- baka bbbb f--k faaa faba fafa faff ffff fkab kaaa kaab kaaf kaak kaba kabb kabf kafa kaff kaka kakk kbaa kbab kbak kbba kbbb kbbf kbbk kbfb kbff kbfk kbkb kbkf kbkk kfab kfbk kffa kffb kfff kffk kfka kfkb kkaa kkba kkbb kkkk

-aaa- aabaa aabba abaab ababa abaka abfab akaba babak babka baffa bakka kaaba kabaa kabab kabak kabba kafak kaffa kafka kakka

aaaaba akbaba akkaba baabaa bbbbbb fakfak kabaka kaffka kakkak

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abakabaka baabaabaa

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