a-a a-b a-c a-t aaa aab aac aae aak aan aap aat ab- aba abb abc abe abk abn abp abt ac- aca acb acc ace ack acn acp act aea aeb aec aee aek aen aep aet aka akb akc ake akk akn akp an- ana anb anc ane ank ann anp ant ap- apa apb apc ape apk apn app apt at- ata atb atc ate atn atp att b-p baa bab bac bae bak ban bap bat bba bbb bbc bbe bbk bbn bbp bbt bca bcb bcc bce bck bcn bcp bct be- bea beb bec bee bek ben bep bet bka bkb bkc bke bkk bkn bkp bkt bna bnb bnc bne bnk bnn bnp bnt bpa bpb bpc bpe bpn bpp bpt bta btb btc bte btk btn btp btt c-- caa cab cac cae cak can cap cat cba cbb cbc cbe cbk cbn cbp cbt cca ccb ccc cce cck ccn ccp cct ce- cea ceb cec cee cek cen cep cet cka ckb ckc ckt cn- cna cnb cnc cne cnn cnp cnt cpa cpb cpc cpe cpk cpn cpp cpt cta ctb ctc cte ctk ctn ctp ctt eaa eab eac eae eak ean eap eat eba ebb ebc ebe ebk ebn ebp ebt ec- eca ecb ecc ece eck ecn ect eea eeb eec eee eek een eep eet eka ekb ekc eke ekp ekt en- ena enb enc ene enk enn enp ent ep- epa epb epc epe epn epp ept eta etb etc ete etk etn etp ett k-t ka- kaa kab kac kae kak kan kap kat kba kbb kbc kbe kbk kbn kbp kca kcb kcc kce kck kcn kcp kct ke- kea keb kec kee kek ken kep ket kkb kkc kke kkk kkn kkp kkt kn- kna knc kne knk knn knp knt kpa kpc kpe kpk kpn kpp kpt kta ktb ktc kte ktk ktn ktp ktt naa nab nac nae nak nan nap nat nba nbb nbc nbe nbk nbn nbp nbt nca ncb ncc nce nck ncn ncp nct ne- nea neb nec nee nek nen nep net nka nkc nke nkk nkn nkp nkt nna nnb nnc nne nnk nnn nnp nnt npa npb npc npe npn npp npt nta ntb ntc nte ntk ntn ntp ntt p-p paa pab pac pae pak pan pap pat pba pbb pbc pbe pbk pbn pbp pbt pca pcb pcc pce pck pcn pcp pct pea peb pec pee pek pen pep pet pka pkb pkc pke pkn pkp pkt pn- pna pnb pnc pne pnk pnn pnp pnt ppa ppb ppc ppe ppk ppn ppp ppt pt- pta ptb ptc pte ptk ptn ptp ptt taa tab tac tae tak tan tap tat tba tbb tbc tbe tbk tbn tbp tbt tca tcb tcc tce tck tcn tcp tct te- tea teb tec tee tek ten tep tet tka tkb tkc tke tkk tkp tkt tna tnb tnc tne tnk tnn tnp tnt tpa tpb tpc tpe tpk tpn tpp tpt tta ttb ttc tte ttk ttn ttp ttt

-ana -ane -ene a-ak a-be aaaa aaab aaac aaae aaan aaap aaba aabb aabc aabp aabt aaca aacb aacc aace aack aacn aacp aact aaea aaec aaen aaep aaka aake aana aane aanp aapa aapc aapt aata aatc aatk aatt abaa abab abac abae abak aban abap abat abb- abba abbb abbe abbt abca abcb abcc abcn abcp abct abec abee aben abet abpa abpc abpn abpp abta ac-t acaa acab acac acae acan acap acat acba acca accc acce accp acct ace- acea acec acek acen acet acke acne acpa acpe acpt acta actc acte actt aeac aean aeap aebn aecb aect aeka aena aent aeta aetc aetn aett akaa akae akan akap akca akee aken akka akna akte ana- anaa anab anac anae anak anan anap anat anba anbb anca ancc ance anct anec anee anen anet ank- anka anke anna annb anne annt anp- anpa anpp ant- anta ante antt apac apak apan apap apat apba apca apcb apcc apcn apea apec apen apep apet apke apna apne appa appc appt apta aptc apte aptn aptt at-t ataa atab atac atae atak atan atap atat atca atcc atck atea atec atee aten atep atka atkt atna atta atte attn attp baaa baak baan baat baba babb babe bac- baca bacc bace back bacn bact baek bak- baka bake bakt bana banc bane bank bann banp bant bapa bapc bape bapp bapt bata batc bate batn batt bbbb bbeb bbet bcaa bcap bcat bcbc bcbp bcca bccc bcec bcet bcpp bctc beak bean beap beat beba bebb bebe beca beck beeb beek been beep beet beka beke bena bene benk benn bent beta betc bete bett bkpt bnet bnpp bnta bpcp bpea btaa btan btbp btcc btec btek bten bttb caaa caab caac caan caap caat caba cabe cac- caca cacc cace cack caec caen caka cake cana canc cane cank cann canp cant capa capb capc cape capn capp capt cat- cata catb catc cate catt cbac cbat cbbc cbca cbcc cbce cbcn cbcp cbct cbea cbec cbee cbet cbka cbkn cbna cbpc cbpp cbta cbtc ccaa ccab ccac ccap ccat ccba ccbc ccbn ccca cccb cccc cccp ccee ccna ccnb ccnc ccne ccnp ccpa ccpe ccpn ccpp cctb cctc cctt ceac cean ceat ceba cebp cec- ceca cece cecp cect ceeb ceec ceke cen- cena cene cent cepa cepc cepe cepp cept cet- ceta cete cetp ckac ckan ckat ckbc ckbe ckck cken cknb cknc cknt ckpc cktb cnaa cnac cnap cnbc cnbp cncp cnep cnet cnna cnpa cnta cntc cntk cpaa cpac cpan cpap cpbc cpca cpce cpea cpeb cpep cpnb cpnt cppa cptp ctab ctae ctan ctba ctca ctcp ctec cten ctep ctne ctpp ctta cttn eaba eaca eacc eaec eana eapc eapp eata eate ebac eban ebba ebbc ebcc eben ecaa ecac ecan ecat ecbc ecbe ecca eccb eccc ecce ecct ecka ecne ecpa ecpp