a-a a-b a-c aaa aab aac aah aak aao aap aas ab- aba abb abc abh abk abo abp abs ac- aca acb acc ach ack aco acp acs aha ahb ahc ahh ahk aho ahp ahs aka akb akc akh akk ako akp aks aoa aob aoc aoh aok aoo aop aos ap- apa apb apc aph apk apo app aps as- asa asb asc ash ask aso asp ass b-p baa bab bac bah bak bao bap bas bba bbb bbc bbh bbk bbo bbp bbs bca bcb bcc bch bck bco bcp bcs bha bhb bhc bhh bhk bho bhp bhs bka bkb bkc bkk bko bkp bks boa bob boc boh bok boo bop bos bpa bpb bpc bph bpo bpp bps bsa bsb bsc bsh bsk bso bsp bss c-- caa cab cac cah cak cao cap cas cba cbb cbc cbh cbk cbo cbp cbs cca ccb ccc cch cck cco ccp ccs ch- cha chb chc chh chk cho chp chs cka ckb ckc ckh cko cks co- coa cob coc coh cok coo cop cos cpa cpb cpc cph cpk cpo cpp cps csa csb csc csh csk cso csp css haa hab hac hah hak hao hap has hba hbb hbc hbh hbk hbo hbp hbs hca hcb hcc hch hck hco hcp hcs hha hhb hhc hhh hhk hho hhp hhs hka hkb hkh hkk hko hkp hks hoa hob hoc hoh hok hoo hop hos hpa hpb hpc hph hpk hpo hpp hps hsa hsb hsc hsh hsk hsp hss ka- kaa kab kac kah kak kao kap kas kba kbb kbc kbh kbk kbo kbp kbs kca kcb kcc kch kck kcp kcs kha khh khk kho khs kkb kkc kkh kkk kkp kks koa kob koc koh kok koo kop kos kpa kpc kph kpk kpo kpp kps ksa ksb ksc ksh ksk kso ksp kss oaa oab oac oah oak oao oap oas ob- oba obb obc obh obk obo obp obs oc- oca ocb occ och ock oco ocp ocs oha ohc ohh oho ohp ohs oka okb okc okk oko okp oks oo- ooa oob ooc ooh ook ooo oop oos op- opa opb opc oph opk opo opp ops os- osa osb osc osh osk oso osp oss p-p paa pab pac pah pak pao pap pas pba pbb pbc pbk pbo pbp pbs pca pcb pcc pch pck pco pcp pcs pha phb phc phk pho php phs pka pkb pkc pko pkp pks poa pob poc poh pok poo pop pos ppa ppb ppc pph ppk ppo ppp pps ps- psa psb psc psh psk pso psp pss saa sab sac sah sak sao sap sas sba sbb sbc sbh sbk sbo sbp sbs sca scb scc sch sck sco scp scs sh- sha shb shc shh shk sho shp shs sk- ska skb skc skh skk sko skp sks soa sob soc soh sok soo sop sos spa spb spc sph spk spo spp sps ss- ssa ssb ssc ssh ssk sso ssp sss

a-ak a-ha a-ok aaaa aaab aaac aaah aaap aaas aaba aabb aabc aabh aabp aaca aacb aacc aach aack aaco aacp aacs aaha aahk aahs aaka aaoo aapa aapc aaph aapo aaps aasa aasc aass abaa abab abac abak abap abas abb- abba abbb abbo abbs abca abcb abcc abch abcp abcs abha abho abhs aboa abob aboh abok aboo abos abpa abpc abpp abps abs- absa absp abss acaa acab acac acap acas acba acca accc acch acco accp accs acha achh acho achp achs acks acoa acoh acop acos acpa acps acsa acsc acss ahab ahac ahah ahas ahha ahhs ahoa ahok ahop ahsa ahso ahss akaa akah akao akap akas akca akha akhs akka akko akok akos akpo aksa aoah aoba aoca aocs aokp aoks aopo aosp aoss apac apah apak apao apap apas apba apbs apca apcb apcc apco apcs aph- apha aphc aphs apo- apoc apoo apop apos appa appc apph apps apsa apso apss asaa asab asac asah asak asao asap asas asba asbo asc- asca ascb ascc asch asco ascp asha ashk ashp ashs aska asko asks asob asoc asok asop asos aspa aspc asph aspo asps assa assc assh assk asso assp asss baaa baah baak baas baba babb babo babs bac- baca bacc bach back baco bacs baha baho bahs bak- baka bakh bako baks baoh baos bapa bapc bapp baps basa basc bash bask baso bass bbas bbbb bbbs bbch bbhs bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bchs bcos bcpp bcps bcsa bcsc bcss bhao bhca bhcc bhhs bkhs bksp boab boac boak boas boba bobb bobo bobs boca boch bock boco bocs boha boho bohs boka boko boks boob booc booh book boop boos bopa bopp bops bosa bosc bosh bosk boso boss bpcp bphc bphs bpsa bsaa bsac bsap bsas bscp bscs bshs bsos bspp bssc c-bo caaa caab caac caah caap caas caba cabo cabs cac- caca cacc cach cack caco caha cahs caka caos capa capb capc caph capo capp caps casa casb casc cash cask caso casp cass cbac cbbc cbbs cbca cbcc cbcp cbcs cbha cbhs cbka cbko cbpc cbpp cbsa cbsc ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccp cccs ccha cchp cchs ccob ccoc ccpa ccpp ccps ccsa ccsp ccss chaa chab chac chah chak chao chap chas chbp chca chch chcp chcs chha chhs chka chkb chks choc choh chok choo chop chos chpa chpp chsc chsh ckac ckbc ckch ckck ckco ckcs ckhs ckoa ckob ckoc ckoo ckos ckpc cksa cksb cksh ckso coak coas coba cobb cobh cobo cobs coca coch cock coco cocp coha coho cohs cok- coka coko coob cooh cook coop coos copa coph copo copp cops cosa cosc cosh coso cosp coss cpaa cpac cpap cpas cpbc cpca cpcs cpha cphs cpos cppa cpps cpsa cpsc cpsk cpso csaa csab csac csak csao csas cscb