a-a a-b a-t aaa aab aaf aat ab- aba abb abf abt af- afa afb aff aft at- ata atb atf att baa bab baf bat bba bbb bbf bbt bfa bfb bff bft bta btb btf btt faa fab faf fat fba fbb fbf fbt ffa fff fft fta ftb ftf ftt taa tab taf tat tba tbb tbf tbt tfa tfb tff tft tta ttb ttf ttt

aaaa aaab aaaf aaba aabb aabt aafa aafb aaff aata aatf aatt abaa abab abaf abat abb- abba abbb abbt abff abta afaa afat affa afft afta at-t ataa atab atat atfb atta baaa baaf baat baba babb baff baft bata batf batt bbbb bfta bftt btaa btaf bttb faaa faba fafa faff fata fatf fatt ffff fftf taa- taaf taat taba tabb tafa taff taft tata tatb tatt tbaf tbta ttab ttbb ttfa ttff tttt

-aaa- aaata aabaa aabba aafat abaab ababa abbat abfab abtaa abtaf aftab atbat baata bafat baffa bafta batab batat batta ffatt ta-ta tabaf tabat tataa tataf tatta tbtbt ttttt

aaaaba aftaab at-bat ataaba baabaa bafata batata bbbbbb tabata tabbat tataat tatafa tattat

attatba batabat bbbbbbb fatafat taffata tat-tat

bbbbbbbb

baabaabaa

tat-tat-tat

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb