-al -ol -th a-a a-b a-c a-t aaa aab aac aah aak aal aan aao aar aat ab- aba abb abc abh abk abl abn abo abr abt ac- aca acb acc ach ack acl acn aco acr act aha ahb ahc ahh ahk ahl ahn aho ahr aht aka akb akc akh akk akl akn ako akr al- ala alb alc alh alk all aln alo alr alt an- ana anb anc anh ank anl ann ano anr ant aoa aob aoc aoh aok aol aon aoo aor aot ar- ara arb arc arh ark arl arn aro arr art at- ata atb atc ath atl atn ato atr att baa bab bac bah bak bal ban bao bar bat bba bbb bbc bbh bbk bbl bbn bbo bbr bbt bca bcb bcc bch bck bcl bcn bco bcr bct bha bhb bhc bhh bhk bhl bho bhr bht bka bkb bkc bkk bkl bkn bko bkr bkt bla blb blc blh blk bll bln blo blr blt bna bnb bnc bnk bnl bnn bno bnr bnt boa bob boc boh bok bol bon boo bor bot bra brb brh brk brl brn bro brr brt bta btb btc bth btk btl btn bto btr btt c-- caa cab cac cah cak cal can cao car cat cba cbb cbc cbh cbk cbl cbn cbo cbr cbt cca ccb ccc cch cck ccl ccn cco ccr cct ch- cha chb chc chh chk chl chn cho chr cht cka ckb ckc ckh cko ckt cl- cla clb clc clh clk cll cln clo clr clt cn- cna cnb cnc cnh cnl cnn cno cnr cnt co- coa cob coc coh cok col con coo cor cot cra crb crc crh crk crl crn cro crr crt cta ctb ctc cth ctk ctl ctn cto ctr ctt haa hab hac hah hak hal han hao har hat hba hbb hbc hbh hbk hbl hbn hbo hbr hbt hca hcb hcc hch hck hcl hcn hco hcr hct hha hhb hhc hhh hhk hhl hhn hho hhr hht hka hkb hkh hkk hkl hkn hko hkr hkt hla hlb hlc hlh hll hln hlo hlr hlt hna hnb hnc hnh hnk hnl hnn hno hnt hoa hob hoc hoh hok hol hon hoo hor hot hr- hra hrb hrc hrh hrk hrl hrn hro hrr hrt hta htb htc hth htk htl htn hto htr htt k-t ka- kaa kab kac kah kak kal kan kao kar kat kba kbb kbc kbh kbk kbl kbn kbo kbr kca kcb kcc kch kck kcl kcn kcr kct kha khh khk khn kho khr kkb kkc kkh kkk kkl kkn kkr kkt kl- kla klb klc klh klo klr klt kn- kna knc knk knl knn kno knr knt koa kob koc koh kok kol kon koo kor kot kra krc krk krl krn kro krr krt kta ktb ktc kth ktk ktl ktn kto ktr ktt la- laa lab lac lah lak lal lan lao lar lat lba lbb lbc lbh lbk lbl lbo lbr lbt lca lcb lcc lch lck lcl lcn lco lcr lct lha lhb lhc lhh lhk lho lhr lht lka lkb lkh lkl lkr lkt lla llb llc llk lll lln llo llr llt lna lnb lnc lnh lnk lnl lnn lno lnr lnt loa lob loc loh lok lol lon loo lor lot lra lrb lrc lrh lrk lrn lro lrr lrt lta ltb ltc lth ltk ltl lto ltr ltt naa nab nac nah nak nal nan nao nar nat nba nbb nbc nbk nbl nbn nbo nbr nbt nca ncb ncc nch nck ncl ncn nco ncr nct nha nhb nhc nhh nhk nhl nhn nhr nht nka nkc nkk nkn nko nkr nkt nla nlb nlc nlh nlk nll nln nlo nlr nlt nna nnb nnc nnh nnk nnl nnn nno nnt no- noa nob noc noh nok nol non noo nor not nra nrb nrc nrk nrl nrn nro nrr nrt nta ntb ntc nth ntk ntn nto ntr ntt oaa oab oac oah oak oal oan oao oar oat ob- oba obb obc obh obk obl obn obo obr obt oc- oca ocb occ och ock ocl ocn oco ocr oct oha ohc ohh ohl ohn oho ohr oht oka okb okc okk okl oko okr ola olb olc olk oll oln olo olt on- ona onb onc onh onk onl onn ono onr ont oo- ooa oob ooc ooh ook ool oon ooo oor oot or- ora orb orc orh ork orl orn oro orr ort ot- ota otb otc oth otk otl otn oto otr ott ra- raa rab rac rah rak ral ran rao rar rat rba rbb rbc rbh rbk rbl rbn rbo rbr rbt rca rcb rcc rch rcl rcn rco rcr rct rh- rha rhb rhc rhh rhl rhn rho rhr rht rkb rkc rkk rko rkt rla rlc rlh rll rln rlo rlr rlt rna rnb rnc rnh rnn rno rnr rnt roa rob roc roh rok rol ron roo ror rot rra rrb rrc rrh rrk rrl rrn rrr rrt rta rtb rtc rtk rtl rtn rto rtr rtt taa tab tac tah tak tal tan tao tar tat tba tbb tbc tbh tbk tbl tbn tbo tbr tbt tca tcb tcc tch tck tcl tcn tco tcr tct th- tha thb thc thh thk thl thn tho thr tht tka tkb tkc tkk tkl tko tkr tkt tla tlc tlh tlk tll tln tlo tlr tlt tna tnb tnc tnh tnk tnl tnn tno tnr tnt to- toa tob toc toh tok tol ton too tor tot tra trb trc trh trk trl trn tro trr trt tta ttb ttc tth ttk ttl ttn tto ttr ttt