-al -ol -th a-a a-b a-c a-t aaa aab aac aaf aah aak aal aao aar aas aat ab- aba abb abc abf abh abk abl abo abr abs abt ac- aca acb acc acf ach ack acl aco acr acs act af- afa afb afc aff afh afk afl afo afr afs aft aha ahb ahc ahf ahh ahk ahl aho ahr ahs aht aka akb akc akh akk akl ako akr aks al- ala alb alc alf alh alk all alo alr als alt aoa aob aoc aof aoh aok aol aoo aor aos aot ar- ara arb arc arf arh ark arl aro arr ars art as- asa asb asc asf ash ask asl aso asr ass ast at- ata atb atc atf ath atl ato atr ats att baa bab bac baf bah bak bal bao bar bas bat bba bbb bbc bbf bbh bbk bbl bbo bbr bbs bbt bca bcb bcc bcf bch bck bcl bco bcr bcs bct bfa bfb bfc bff bfh bfl bfo bfr bfs bft bha bhb bhc bhf bhh bhk bhl bho bhr bhs bht bka bkb bkc bkf bkk bkl bko bkr bks bkt bla blb blc blf blh blk bll blo blr bls blt boa bob boc bof boh bok bol boo bor bos bot bra brb brf brh brk brl bro brr brs brt bsa bsb bsc bsf bsh bsk bsl bso bsr bss bst bta btb btc btf bth btk btl bto btr bts btt c-- caa cab cac caf cah cak cal cao car cas cat cba cbb cbc cbf cbh cbk cbl cbo cbr cbs cbt cca ccb ccc ccf cch cck ccl cco ccr ccs cct cfa cfb cfc cff cfh cfk cfl cfo cfr cfs cft ch- cha chb chc chf chh chk chl cho chr chs cht cka ckb ckc ckh cko cks ckt cl- cla clb clc clf clh clk cll clo clr cls clt co- coa cob coc cof coh cok col coo cor cos cot cra crb crc crf crh crk crl cro crr crs crt csa csb csc csf csh csk csl cso csr css cst cta ctb ctc ctf cth ctk ctl cto ctr cts ctt faa fab fac faf fah fak fal fao far fas fat fba fbb fbc fbf fbh fbk fbl fbo fbr fbs fbt fca fcb fcc fcf fck fcl fco fcr fcs fct ffa ffc fff ffh ffk ffl ffo ffr ffs fft fha fhb fhc fhf fhh fhl fho fhr fhs fka fkb fkc fkf fkk fkl fkt fla flb flc flf fll flo flr fls flt foa fob foc fof foh fok fol foo for fos fot fra frb frc frf frh frk frl fro frr frs frt fsa fsb fsc fsf fsh fsk fsl fso fsr fss fst fta ftb ftc ftf fth ftk ftl fto ftr fts ftt haa hab hac haf hah hak hal hao har has hat hba hbb hbc hbf hbh hbk hbl hbo hbr hbs hbt hca hcb hcc hcf hch hck hcl hco hcr hcs hct hfa hfb hfc hff hfh hfk hfl hfo hfr hfs hft hha hhb hhc hhf hhh hhk hhl hho hhr hhs hht hka hkb hkf hkh hkk hkl hko hkr hks hkt hla hlb hlc hlf hlh hll hlo hlr hls hlt hoa hob hoc hof hoh hok hol hoo hor hos hot hr- hra hrb hrc hrf hrh hrk hrl hro hrr hrs hrt hsa hsb hsc hsf hsh hsk hsl hsr hss hst hta htb htc htf hth htk htl hto htr hts htt k-t ka- kaa kab kac kaf kah kak kal kao kar kas kat kba kbb kbc kbf kbh kbk kbl kbo kbr kbs kca kcb kcc kch kck kcl kcr kcs kct kfa kfc kff kfh kfo kfs kha khf khh khk kho khr khs kkb kkc kkh kkk kkl kkr kks kkt kl- kla klb klc klf klh klo klr kls klt koa kob koc kof koh kok kol koo kor kos kot kra krc krf krk krl kro krr krs krt ksa ksb ksc ksf ksh ksk ksl kso ksr kss kst kta ktb ktc ktf kth ktk ktl kto ktr kts ktt la- laa lab lac laf lah lak lal lao lar las lat lba lbb lbc lbf lbh lbk lbl lbo lbr lbs lbt lca lcb lcc lcf lch lck lcl lco lcr lcs lct lfa lfb lfc lff lfh lfk lfl lfo lfr lfs lft lha lhb lhc lhf lhh lhk lho lhr lhs lht lka lkb lkh lkl lkr lks lkt lla llb llc llf llk lll llo llr lls llt loa lob loc lof loh lok lol loo lor los lot lra lrb lrc lrf lrh lrk lro lrr lrs lrt lsa lsb lsc lsf lsh lsk lsl lso lsr lss lst lta ltb ltc ltf lth ltk ltl lto ltr lts ltt oaa oab oac oaf oah oak oal oao oar oas oat ob- oba obb obc obf obh obk obl obo obr obs obt oc- oca ocb occ ocf och ock ocl oco ocr ocs oct of- ofa ofb ofc off ofl ofo ofr ofs oft oha ohc ohf ohh ohl oho ohr ohs oht oka okb okc okk okl oko okr oks ola olb olc olf olk oll olo ols olt oo- ooa oob ooc oof ooh ook ool ooo oor oos oot or- ora orb orc orf orh ork orl oro orr ors ort os- osa osb osc osf osh osk osl oso osr oss ost ot- ota otb otc otf oth otk otl oto otr ots ott ra- raa rab rac raf rah rak ral rao rar ras rat rba rbb rbc rbf rbh rbk rbl rbo rbr rbs rbt rca rcb rcc rcf rch rcl rco rcr rcs rct rfa rfb rfc rff rfh rfk rfl rfo rfr rfs rft rh- rha rhb rhc rhf rhh rhl rho rhr rhs rht rkb rkc rkf rkk rko