a-ii aaaa aaab aaad aaaf aaai aaba aabb aabd aabi aabt aada aadi aadt aafa aafb aafd aaff aafi aaib aaii aata aatf aatt abaa abab abad abaf abai abat abb- abba abbb abbi abbt abda abdi abff abia abib abid abit abta adaa adab adad adai adat adba adbi adda addd addi adfa adia adib adif adit adta afaa afad afat afdb affa affi afft afia afib afid afif afit afta aiai aiba aida aidb aidi aidt aifd aiff aiia aiib aiid aita aitf aiti aitt at-t ataa atab atad atai atat atdi atdt atfb atia atid atif atit atta atti ba-i baaa baad baaf baat baba babb babi bada badb badd badi baff baft baia baib baid bait bata batf bati batt bbad bbbb bbdd bdii bfta bftt biad biaf biat biba bibb bibi bida bidi bifa biff bifi bita bitd bitt btaa btaf btdt bttb daab daad daba dabb dabt dada dadi dafa daff dafi daft daia daid dait data dati datt dbit dbtt dddd dfaf dfdt dffa dia- diab diad diaf diat diba dibb dida didi dif- difa diff diii dita diti ditt dtaa faaa faad faba fabd fabi fada fadd fadi fafa faff fafi faid fait fata fatf fati fatt fdti ffff ffii fftf fiaa fiad fiaf fiat fiba fida fidf fifa fiff fifi fift fiii fita fiti fitt ftdi ftii iaaa iaai iaat iaba iadb iadt iaff iaia iata iati ibad ibat ibfi ibia ibid ibtb idad idat idda idfa idia idid idta ifaa ifat ifbb ifda ifid ifit ifta iida iifa iiii iiit iita iitt itaa itaf itai itat itfa itia itif itta ittf taa- taaf taat taba tabb tabi tada tafa taff tafi taft taia tait tata tatb tati tatt tbaf tbit tbta tddb tdff tiaa tiab tiaf tiba tibi tidd tifa tiff tift tiit tita titi titt ttab ttbb ttfa ttff tttt