a-a a-b a-c aaa aab aac aak aam aan aap aar ab- aba abb abc abk abm abn abp abr ac- aca acb acc ack acm acn acp acr aka akb akc akk akm akn akp akr ama amb amc amk amm amn amp amr an- ana anb anc ank anm ann anp anr ap- apa apb apc apk apm apn app apr ar- ara arb arc ark arm arn arp arr b-p baa bab bac bak bam ban bap bar bba bbb bbc bbk bbm bbn bbp bbr bca bcb bcc bck bcm bcn bcp bcr bka bkb bkc bkk bkm bkn bkp bkr bma bmb bmc bmk bmm bmn bmp bmr bna bnb bnc bnk bnn bnp bnr bpa bpb bpc bpm bpn bpp bpr bra brb brk brm brn brp brr c-- caa cab cac cak cam can cap car cba cbb cbc cbk cbm cbn cbp cbr cca ccb ccc cck ccm ccn ccp ccr cka ckb ckc ckm cma cmb cmc cmk cmm cmn cmp cmr cn- cna cnb cnc cnm cnn cnp cnr cpa cpb cpc cpk cpm cpn cpp cpr cra crb crc crk crm crn crp crr ka- kaa kab kac kak kam kan kap kar kba kbb kbc kbk kbm kbn kbp kbr kca kcb kcc kck kcm kcn kcp kcr kkb kkc kkk kkm kkn kkp kkr kma kmb kmc kmk kmm kmp kn- kna knc knk knm knn knp knr kpa kpc kpk kpm kpn kpp kpr kra krc krk krn krp krr m-r maa mab mac mak mam man map mar mba mbb mbc mbk mbm mbp mbr mc- mca mcb mcc mck mcm mcn mcp mcr mka mkb mkc mkk mkm mkn mkp mkr mma mmb mmc mmk mmm mmn mmp mmr mna mnb mnc mnk mnm mnn mnp mnr mpa mpb mpc mpk mpm mpn mpp mpr mra mrb mrc mrk mrm mrn mrp mrr naa nab nac nak nam nan nap nar nba nbb nbc nbk nbm nbn nbp nbr nca ncb ncc nck ncm ncn ncp ncr nka nkc nkk nkm nkn nkp nkr nma nmb nmc nmk nmm nmn nmp nmr nna nnb nnc nnk nnm nnn nnp npa npb npc npm npn npp npr nra nrb nrc nrk nrm nrn nrp nrr p-p paa pab pac pak pam pan pap par pba pbb pbc pbk pbm pbn pbp pbr pca pcb pcc pck pcm pcn pcp pcr pka pkb pkc pkm pkn pkp pkr pma pmb pmc pmk pmm pmn pmp pmr pn- pna pnb pnc pnk pnm pnn pnp pnr ppa ppb ppc ppk ppm ppn ppp ppr pra prb prc prk prm prn prp prr ra- raa rab rac rak ram ran rap rar rba rbb rbc rbk rbm rbn rbp rbr rca rcb rcc rcm rcn rcp rcr rkb rkc rkk rkm rkp rma rmb rmc rmm rmn rmp rmr rna rnb rnc rnm rnn rnp rnr rpa rpb rpc rpk rpm rpn rpp rpr rra rrb rrc rrk rrm rrn rrp rrr

-ana a-ak aaaa aaab aaac aaam aaan aaap aaar aaba aabb aabc aabm aabp aaca aacb aacc aack aacm aacn aacp aacr aaka aama aamb aamc aamn aamp aamr aana aanp aapa aapc aapm aara aarc aarm aarp abaa abab abac abak abam aban abap abar abb- abba abbb abbr abca abcb abcc abcn abcp abcr abma abmb abmc abpa abpc abpm abpn abpp abpr abra abrc acaa acab acac acan acap acar acba acca accc accm accp acma acmc acmp acpa acpm acpr acr- acra acrc acrm acrr akaa akam akan akap akar akca akka akna akr- akra amaa amac amam aman amap amar amb- amba ambn ambr amca amcc amka amm- amma ampa ampc ampk ampm amra amrc ana- anaa anab anac anak anam anan anap anar anba anbb anca ancc ank- anka anma anna annb anp- anpa anpp anpr anrc apac apak apam apan apap apar apba apbr apca apcb apcc apcm apcn apcr apma apna appa appc appr apra aprc aprn arab arac arak aram aran arap arar arba arc- arca arcm arka arma armc armm arna arnk arpa arr- arra arrc arrk arrr baaa baak baam baan baar baba babb babm babr bac- baca bacc back bacn bak- baka bakr bama bamb bamc bamm bamn bamp bana banc bank bann banp banr bapa bapc bapp bar- bara barb barc bark barm barn barr bbbb bbcm bbpr bbrc bcaa bcam bcap bcar bcbc bcbp bcca bccc bccm bcma bcmp bcpp bcra bkpr bmaa bman bnpp bnrr bpcp bpmc bpmn bprc brab brac brak bram bran brca brcb brka brkb brmc brna brrm brrr caaa caab caac caam caan caap caba cac- caca cacc cack cacm cacr caka cama camb camc camk camm camp cana canc cank cann canp capa capb capc capm capn capp cara carb carc cark carm carn carp carr cbac cbar cbbc cbca cbcc cbcm cbcn cbcp cbcr cbka cbkm cbkn cbkr cbna cbpc cbpp cbrm cbrn ccaa ccab ccac ccam ccap ccar ccba ccbc ccbn ccca cccb cccc cccm cccp cckm ccma ccmb ccmc ccmm ccmp ccna ccnb ccnc ccnm ccnp ccnr ccpa ccpm ccpn ccpp ccpr ccra ccrc ccrp ckac ckan ckbc ckck ckcm ckmp cknb cknc ckpc ckpr ckrc ckrm cmaa cmac cmap cmba cmbc cmcc cmmb cmmc cmmn cmpa cmpc cmpk cmpp cmra cmrn cmrr cnaa cnac cnam cnap cnbc cnbm cnbp cncp cnma cnna cnpa cnrc cnrr cpaa cpac cpam cpan cpap cpbc cpca cpcm cpma cpmp cpnb cppa cppm cprm crab crac cram cran crap crar crbc crca crcc crcr crkc crkp crmb crmn crmp crna crpc kaaa kaab kaak kaam kaan kaap kaar kaba kabb kabc kabr kacb kacc kacp kaka kakc kakk kakm kakn kam- kama kamb kamc kamm kamn kamp kamr kana kanb kanm kann kanp kap- kapa kapc kapn kapp kara karb kark karm karn karp karr kbaa kbab kbac kbak kbam kbap kbar kbba kbbb kbbc kbbk kbbm kbbr kbca kbcb kbck kbcr kbkb kbkk kbkr kbmb kbmc