a-a a-b a-t aaa aab aao aat ab- aba abb abo abt aoa aob aoo aot at- ata atb ato att baa bab bao bat bba bbb bbo bbt boa bob boo bot bta btb bto btt oaa oab oao oat ob- oba obb obo obt oo- ooa oob ooo oot ot- ota otb oto ott taa tab tao tat tba tbb tbo tbt to- toa tob too tot tta ttb tto ttt

aaaa aaab aaba aabb aabt aaoo aata aatt abaa abab abat abb- abba abbb abbo abbt aboa abob aboo abot abta aoba at-t ataa atab atat atob atot atta atto baaa baat baba babb babo bata bato batt bbbb boab boat boba bobb bobo boob boot bota botb boto bott btaa btob bttb obba obbo obot ooaa ooba oooo ootb oto- otoo otta otto taa- taat taba tabb tabo taoa tata tatb tato tatt tbta toab toat toba tobo tobt tooa toot tota toto tott ttab ttbb tttt

-aaa- aaata aabaa aabba abaab ababa abbat abbot aboab aboat abobo aboot abott abtaa abtao atbat atoot atoto atto- baata baboo babot batab batat batob batoo batta batto bo-bo booat booba boota botta obaba obata ooooo otoba ototo ta-ta taabo tabat tabo- tabot tataa tatao tatoo tatta tatto tbtbt tobat tobot toto- totoo totta ttttt

aaaaba abbott at-bat ataaba baabaa baobab batata bbbbbb boabab bobota booboo botota oooooo tabata tabbat taboot taobao taobat taotao tataat tatoba tattat tattoo toatoa tobata toboot tootat tootoo totota

attatba batabat batboat batoata bbbbbbb boo-boo o-o-a-a tat-tat too-too totoaba tototoo

bbbbbbbb bo-bo-bo toottoot

baabaabaa

tat-tat-tat

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb