-th a-a a-b a-c a-t aaa aab aac aah aaj aan aao aat ab- aba abb abc abh abj abn abo abt ac- aca acb acc ach acj acn aco act aha ahb ahc ahh ahj ahn aho aht aja ajb ajc ajh ajj ajn ajo ajt an- ana anb anc anh anj ann ano ant aoa aob aoc aoh aoj aon aoo aot at- ata atb atc ath atn ato att baa bab bac bah baj ban bao bat bba bbb bbc bbh bbn bbo bbt bca bcb bcc bch bcj bcn bco bct bha bhb bhc bhh bhj bho bht bja bjc bjj bjn bjt bna bnb bnc bnj bnn bno bnt boa bob boc boh boj bon boo bot bta btb btc bth btn bto btt c-- c-j caa cab cac cah caj can cao cat cba cbb cbc cbh cbj cbn cbo cbt cca ccb ccc cch ccj ccn cco cct ch- cha chb chc chh chn cho cht cja cjb cjc cn- cna cnb cnc cnh cnj cnn cno cnt co- coa cob coc coh coj con coo cot cta ctb ctc cth ctn cto ctt haa hab hac hah haj han hao hat hba hbb hbc hbh hbj hbn hbo hbt hca hcb hcc hch hcj hcn hco hct hha hhb hhc hhh hhj hhn hho hht hja hjn hjo hjt hna hnb hnc hnh hnj hnn hno hnt hoa hob hoc hoh hon hoo hot hta htb htc hth htj htn hto htt jaa jab jac jah jaj jan jao jat jba jbc jbj jbo jbt jca jcb jcc jch jco jct jha jhc jhj jhn jho jht jja jjb jjc jjj jna jnc jnh jnj jnn jno jnt joa job joc joh joj jon joo jot jta jtb jtc jth jtn jtt naa nab nac nah naj nan nao nat nba nbb nbc nbn nbo nbt nca ncb ncc nch ncn nco nct nha nhb nhc nhh nhj nhn nht nja njc njn nna nnb nnc nnh nnn nno nnt no- noa nob noc noh noj non noo not nta ntb ntc nth ntn nto ntt oaa oab oac oah oaj oan oao oat ob- oba obb obc obh obj obn obo obt oc- oca ocb occ och ocj ocn oco oct oha ohc ohh ohn oho oht oja ojb ojc ojo on- ona onb onc onh onj onn ono ont oo- ooa oob ooc ooh oon ooo oot ot- ota otb otc oth otn oto ott taa tab tac tah taj tan tao tat tba tbb tbc tbh tbj tbn tbo tbt tca tcb tcc tch tcj tcn tco tct th- tha thb thc thh thn tho tht tjc tjo tna tnb tnc tnh tnn tno tnt to- toa tob toc toh toj ton too tot tta ttb ttc tth ttn tto ttt