-th a-a a-b a-c a-t aaa aab aac aae aah aak aao aat ab- aba abb abc abe abh abk abo abt ac- aca acb acc ace ach ack aco act aea aeb aec aee aeh aek aeo aet aha ahb ahc ahe ahh ahk aho aht aka akb akc ake akh akk ako aoa aob aoc aoe aoh aok aoo aot at- ata atb atc ate ath ato att baa bab bac bae bah bak bao bat bba bbb bbc bbe bbh bbk bbo bbt bca bcb bcc bce bch bck bco bct be- bea beb bec bee beh bek beo bet bha bhb bhc bhe bhh bhk bho bht bka bkb bkc bke bkk bko bkt boa bob boc boe boh bok boo bot bta btb btc bte bth btk bto btt c-- caa cab cac cae cah cak cao cat cba cbb cbc cbe cbh cbk cbo cbt cca ccb ccc cce cch cck cco cct ce- cea ceb cec cee ceh cek ceo cet ch- cha chb chc che chh chk cho cht cka ckb ckc ckh cko ckt co- coa cob coc coe coh cok coo cot cta ctb ctc cte cth ctk cto ctt eaa eab eac eae eah eak eao eat eba ebb ebc ebe ebh ebk ebo ebt ec- eca ecb ecc ece ech eck eco ect eea eeb eec eee eek eeo eet eha ehb ehc ehe ehh eho eht eka ekb ekc eke ekh eko ekt eo- eoa eob eoc eoe eoh eok eoo eot eta etb etc ete eth etk eto ett haa hab hac hae hah hak hao hat hba hbb hbc hbe hbh hbk hbo hbt hca hcb hcc hce hch hck hco hct he- hea heb hec hee heh hek heo het hha hhb hhc hhe hhh hhk hho hht hka hkb hkh hkk hko hkt hoa hob hoc hoe hoh hok hoo hot hta htb htc hte hth htk hto htt k-t ka- kaa kab kac kae kah kak kao kat kba kbb kbc kbe kbh kbk kbo kca kcb kcc kce kch kck kct ke- kea keb kec kee keh kek keo ket kha khe khh khk kho kkb kkc kke kkh kkk kkt koa kob koc koe koh kok koo kot kta ktb ktc kte kth ktk kto ktt oaa oab oac oae oah oak oao oat ob- oba obb obc obe obh obk obo obt oc- oca ocb occ och ock oco oct oea oeb oec oee oeh oeo oet oha ohc ohe ohh oho oht oka okb okc oke okk oko oo- ooa oob ooc ooh ook ooo oot ot- ota otb otc ote oth otk oto ott taa tab tac tae tah tak tao tat tba tbb tbc tbe tbh tbk tbo tbt tca tcb tcc tce tch tck tco tct te- tea teb tec tee teh tek teo tet th- tha thb thc the thh thk tho tht tka tkb tkc tke tkk tko tkt to- toa tob toc toe toh tok too tot tta ttb ttc tte tth ttk tto ttt

a-ak a-be a-ha a-ok aaaa aaab aaac aaae aaah aaba aabb aabc aabh aabt aaca aacb aacc aace aach aack aaco aact aaea aaec aaha aahk aaka aake aaoe aaoo aata aatc aatk aatt abaa abab abac abae abak abat abb- abba abbb abbe abbo abbt abca abcb abcc abch abct abec abee abet abha abho aboa abob aboh abok aboo abot abta ac-t acaa acab acac acae acat acba acca accc acce acch acco acct ace- acea acec aceh acek acet acha ache achh acho acht acke acoa acoe acoh acot acta actc acte acth acto actt aeac aecb aect aeka aeta aetc aeto aett ahab ahac ahah ahat ahet ahha ahoa ahoe ahok ahot ahta ahte ahto akaa akae akah akao akca akee akha akka akko akok akot akte aoah aoba aoca aoce aotc at-t ataa atab atac atae atak atat atca atcc atch atck atco atea atec atee ateo atha athe atho atka atkt atob atoc atoe atok atot atta atte atto baaa baah baak baat baba babb babe babo bac- baca bacc bace bach back baco bact baek baha baho baht bak- baka bake bakh bako bakt baoh bata batc bate bath bato batt bbbb bbch bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bche bctc beah beak beat beba bebb bebe bebo beca bech beck beeb beek beet beka beke beko beo- beok beot beta betc bete beth beto bett bhao bhat bhca bhcc bhet bhot boab boac boak boat boba bobb bobe bobo boca boce boch bock boco boea boec boee boeo boet boha boho boht boka boke boko boob booc booe booh book boot bota botb bote both boto bott btaa btcc btec btek btob bttb c-bo caaa caab caac caah caat caba cabe cabo cac- caca cacc cace cach cack caco caec caha cahe caht caka cake cat- cata catb catc cate cath cato catt cbac cbat cbbc cbca cbcc cbce cbct cbea cbec cbee cbet cbha cbka cbko cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccee ccha cche ccob ccoc cctb cctc cctt ceac ceat ceba cec- ceca cece ceco cect ceeb ceec ceke cet- ceta cete ceto chaa chab chac chae chah chak chao chat chca chce chch chea cheb chec chee cheh chek chet chha chka chkb chkt choc choh chok choo chto chtt ckac ckat ckbc ckbe ckch ckck ckco ckoa ckob ckoc ckoo ckot cktb coak coat coba cobb cobe cobh cobo coca coce coch cock coco coct coha coho cok- coka coke coko coob cooh cook coot cota cotb cotc cote coth coto cott ctab ctae ctba ctca ctec ctot ctta eaba eabh eaca eacc each eaec eata eate eath ebac ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecao ecat ecbc ecbe ecca eccb eccc ecce ecco ecct echa eche echo echt ecka ecko eco- ecot ect- ecta ectc ecth ecto eeca eeea eeee eeka eeke