aaaa aaab aaad aaam aaba aabb aabd aabm aabt aada aadt aama aamb aamd aata aatt abaa abab abad abam abat abb- abba abbb abbt abda abma abmb abmt abta adaa adab adad adam adat adba adda addd adma admb adta amaa amad amam amat amb- amba amda amdt amm- amma amta at-t ataa atab atad atat atdt atm- atma atta baaa baad baam baat baba babb babm bada badb badd bama bamb bamm bata batt bbad bbbb bbdd bmaa bmdb btaa btdt bttb daab daad daam daba dabb dabt dada dama damb damm data datt dbtt dddd dmaa dmab dmba dmdt dtaa maaa maad maam maat maba mada madb madd madt mama mata matt mbam mbba mbda mbdb mbta mdat mddm mdma mdta mmaa mmab mmda mmdb mmmd mmmm mtaa mtab mtbd taa- taat taba tabb tada tama tamd tamm tata tatb tatt tbta tddb tdma tmaa tmtt ttab ttbb ttma tttt