-al -th a-a a-b a-c a-t aaa aab aac aah aak aal aat ab- aba abb abc abh abk abl abt ac- aca acb acc ach ack acl act aha ahb ahc ahh ahk ahl aht aka akb akc akh akk akl al- ala alb alc alh alk all alt at- ata atb atc ath atl att baa bab bac bah bak bal bat bba bbb bbc bbh bbk bbl bbt bca bcb bcc bch bck bcl bct bha bhb bhc bhh bhk bhl bht bka bkb bkc bkk bkl bkt bla blb blc blh blk bll blt bta btb btc bth btk btl btt c-- caa cab cac cah cak cal cat cba cbb cbc cbh cbk cbl cbt cca ccb ccc cch cck ccl cct ch- cha chb chc chh chk chl cht cka ckb ckc ckh ckt cl- cla clb clc clh clk cll clt cta ctb ctc cth ctk ctl ctt haa hab hac hah hak hal hat hba hbb hbc hbh hbk hbl hbt hca hcb hcc hch hck hcl hct hha hhb hhc hhh hhk hhl hht hka hkb hkh hkk hkl hkt hla hlb hlc hlh hll hlt hta htb htc hth htk htl htt k-t ka- kaa kab kac kah kak kal kat kba kbb kbc kbh kbk kbl kca kcb kcc kch kck kcl kct kha khh khk kkb kkc kkh kkk kkl kkt kl- kla klb klc klh klt kta ktb ktc kth ktk ktl ktt la- laa lab lac lah lak lal lat lba lbb lbc lbh lbk lbl lbt lca lcb lcc lch lck lcl lct lha lhb lhc lhh lhk lht lka lkb lkh lkl lkt lla llb llc llk lll llt lta ltb ltc lth ltk ltl ltt taa tab tac tah tak tal tat tba tbb tbc tbh tbk tbl tbt tca tcb tcc tch tck tcl tct th- tha thb thc thh thk thl tht tka tkb tkc tkk tkl tkt tla tlc tlh tlk tll tlt tta ttb ttc tth ttk ttl ttt