a-a a-b a-c aaa aab aac aak aan aap aas ab- aba abb abc abk abn abp abs ac- aca acb acc ack acn acp acs aka akb akc akk akn akp aks an- ana anb anc ank ann anp ans ap- apa apb apc apk apn app aps as- asa asb asc ask asn asp ass b-p baa bab bac bak ban bap bas bba bbb bbc bbk bbn bbp bbs bca bcb bcc bck bcn bcp bcs bka bkb bkc bkk bkn bkp bks bna bnb bnc bnk bnn bnp bns bpa bpb bpc bpn bpp bps bsa bsb bsc bsk bsn bsp bss c-- caa cab cac cak can cap cas cba cbb cbc cbk cbn cbp cbs cca ccb ccc cck ccn ccp ccs cka ckb ckc cks cn- cna cnb cnc cnn cnp cns cpa cpb cpc cpk cpn cpp cps csa csb csc csk csn csp css ka- kaa kab kac kak kan kap kas kba kbb kbc kbk kbn kbp kbs kca kcb kcc kck kcn kcp kcs kkb kkc kkk kkn kkp kks kn- kna knc knk knn knp kpa kpc kpk kpn kpp kps ksa ksb ksc ksk ksn ksp kss naa nab nac nak nan nap nas nba nbb nbc nbk nbn nbp nbs nca ncb ncc nck ncn ncp ncs nka nkc nkk nkn nkp nks nna nnb nnc nnk nnn nnp nns npa npb npc npn npp nps nsa nsb nsc nsk nsn nsp nss p-p paa pab pac pak pan pap pas pba pbb pbc pbk pbn pbp pbs pca pcb pcc pck pcn pcp pcs pka pkb pkc pkn pkp pks pn- pna pnb pnc pnk pnn pnp pns ppa ppb ppc ppk ppn ppp pps ps- psa psb psc psk psn psp pss saa sab sac sak san sap sas sba sbb sbc sbk sbn sbp sbs sca scb scc sck scn scp scs sk- ska skb skc skk skp sks sna snb snc snk snn snp sns spa spb spc spk spn spp sps ss- ssa ssb ssc ssk ssn ssp sss

-ana a-ak aaaa aaab aaac aaan aaap aaas aaba aabb aabc aabp aaca aacb aacc aack aacn aacp aacs aaka aana aanp aapa aapc aaps aasa aasc aass abaa abab abac abak aban abap abas abb- abba abbb abbs abca abcb abcc abcn abcp abcs abpa abpc abpn abpp abps abs- absa absp abss acaa acab acac acan acap acas acba acca accc accp accs acks acpa acps acsa acsc acss akaa akan akap akas akca akka akna aksa ana- anaa anab anac anak anan anap anas anba anbb anca ancc ank- anka anna annb anns anp- anpa anpp ansa ansp apac apak apan apap apas apba apbs apca apcb apcc apcn apcs apna appa appc apps apsa apss asaa asab asac asak asan asap asas asba asc- asca ascb ascc ascp aska asks asnc aspa aspc asps assa assc assk assn assp asss baaa baak baan baas baba babb babs bac- baca bacc back bacn bacs bak- baka baks bana banc bank bann banp bans bapa bapc bapp baps basa basc bask bass bbas bbbb bbbs bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcsa bcsc bcsn bcss bksp bnas bnpp bnss bpcp bpsa bsaa bsac bsap bsas bscp bscs bsns bspp bssc caaa caab caac caan caap caas caba cabs cac- caca cacc cack caka cana canc cank cann canp cans capa capb capc capn capp caps casa casb casc cask casp cass cbac cbbc cbbs cbca cbcc cbcn cbcp cbcs cbka cbkn cbna cbpc cbpp cbsa cbsc cbsn ccaa ccab ccac ccap ccas ccba ccbc ccbn ccca cccb cccc cccp cccs ccna ccnb ccnc ccnp ccns ccpa ccpn ccpp ccps ccsa ccsn ccsp ccss ckac ckan ckbc ckck ckcs cknb cknc ckns ckpc cksa cksb cnaa cnac cnap cnas cnbc cnbp cncp cnna cnpa cnsa cnss cpaa cpac cpan cpap cpas cpbc cpca cpcs cpnb cpns cppa cpps cpsa cpsc cpsk csaa csab csac csak csas cscb cscc cscs cska csks csnp cspa cspb cspc csps cssa kaaa kaab kaak kaan kaap kaas kaba kabb kabc kacb kacc kacp kacs kaka kakc kakk kakn kaks kana kanb kann kanp kans kap- kapa kapc kapn kapp kaps kas- kasa kasb kasc kask kasn kasp kass kbaa kbab kbac kbak kbap kbas kbba kbbb kbbc kbbk kbbs kbca kbcb kbck kbcs kbkb kbkk kbna kbnn kbnp kbpa kbpc kbpk kbpn kbps kbsa kbsb kbsk kbsn kbss kcaa kcab kcac kcap kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kckc kckk kckn kcnb kcnp kcns kcpa kcpc kcpn kcps kcsa kcsb kcsc kcsn kcsp kcss kkaa kkac kkan kkap kkba kkbb kkbn kkbs kkcb kkck kkcn kkcs kkkk kknb kknn kkns kkpc kkpk kkpn kkps kksa kksn kksp kkss knaa knab knac knan knap knas knba knbb knbc knbn knca kncb knck kncn knkk knnb knnk knns knpa knpb knpc knsa knsb knsc knsk knsn knsp knss kpac kpak kpan kpas kpba kpbb kpbs kpcc kpcs kpkk kpnc kpnp kpns kppc kppk kppp kpsc kpsp ksab ksac ksak ksan ksas ksba ksbc ksbn ksbp ksbs ksca kscb ksck kscn kscs kska kskb kskk kskn ksks ksna ksnb ksnc ksnk ksnn ksnp ksns kspa kspb kspc kspk kspn ksps kssa kssn ksss naaa naab naac naan naas naba nabc nabk nabs naca nacc nack nacp nacs naka naks nan- nana nanb nann nanp nans napa napb napp naps nas- nasa nasb nasc nask nasp nass nbaa nbak nbap nbas nbbc nbca nbcc nbcs nbpa nbpp nbps nbsp ncaa ncac ncap ncba ncbc ncbs ncca nccc nccn nccp nccs ncna ncnc ncpa ncpc ncsa ncsc ncss nkpa nksp nnnn nnsa nnss npac npap npas npca npcc nppa nppc npsa npss nsaa nsac nsca nscc nscs nskk nsna nspc nsps nssa nssb nssc nssp nsss paak paan paap paas paba paca pack pacs paka paks pan- pana panc pank pann pans papa papb papp paps pasa pasc pask pasp pass pbac