a-a a-b a-c aaa aab aac aak aam aan aao aar aas aay ab- aba abb abc abk abm abn abo abr abs aby ac- aca acb acc ack acm acn aco acr acs acy aka akb akc akk akm akn ako akr aks ama amb amc amk amm amn amo amr ams amy an- ana anb anc ank anm ann ano anr ans any aoa aob aoc aok aom aon aoo aor aos ar- ara arb arc ark arm arn aro arr ars ary as- asa asb asc ask asm asn aso asr ass asy ay- aya ayc ayk ayn ayo ayr ays baa bab bac bak bam ban bao bar bas bay bba bbb bbc bbk bbm bbn bbo bbr bbs bby bca bcb bcc bck bcm bcn bco bcr bcs bcy bka bkb bkc bkk bkm bkn bko bkr bks bma bmb bmc bmk bmm bmn bmo bmr bms bna bnb bnc bnk bnn bno bnr bns boa bob boc bok bom bon boo bor bos boy bra brb brk brm brn bro brr brs bry bsa bsb bsc bsk bsm bsn bso bsr bss bsy by- bya byc byk bym byn byo byr bys c-- caa cab cac cak cam can cao car cas cay cba cbb cbc cbk cbm cbn cbo cbr cbs cby cca ccb ccc cck ccm ccn cco ccr ccs cka ckb ckc ckm cko cks cky cma cmb cmc cmk cmm cmn cmo cmr cms cmy cn- cna cnb cnc cnm cnn cno cnr cns cny co- coa cob coc cok com con coo cor cos coy cra crb crc crk crm crn cro crr crs cry csa csb csc csk csm csn cso csr css csy cya cyb cyc cyk cym cyn cyo cyr cys ka- kaa kab kac kak kam kan kao kar kas kay kba kbb kbc kbk kbm kbn kbo kbr kbs kca kcb kcc kck kcm kcn kcr kcs kkb kkc kkk kkm kkn kkr kks kky kma kmb kmc kmk kmm kmo kms kn- kna knc knk knm knn kno knr koa kob koc kok kom kon koo kor kos koy kra krc krk krn kro krr krs kry ksa ksb ksc ksk ksm ksn kso ksr kss kya kyc kym kyn kyo kyr kys m-o m-r maa mab mac mak mam man mao mar mas may mba mbb mbc mbk mbm mbo mbr mbs mc- mca mcb mcc mck mcm mcn mco mcr mcs mka mkb mkc mkk mkm mkn mko mkr mks mky mma mmb mmc mmk mmm mmn mmo mmr mms mna mnb mnc mnk mnm mnn mno mnr mns moa mob moc mok mom mon moo mor mos moy mra mrb mrc mrk mrm mrn mro mrr mrs mry msa msb msc msk msm msn mso msr mss msy my- mya myb myc myk mym myn myo myr mys naa nab nac nak nam nan nao nar nas nay nba nbb nbc nbk nbm nbn nbo nbr nbs nca ncb ncc nck ncm ncn nco ncr ncs nka nkc nkk nkm nkn nko nkr nks nky nma nmb nmc nmk nmm nmn nmo nmr nms nna nnb nnc nnk nnm nnn nno nns no- noa nob noc nok nom non noo nor nos noy nra nrb nrc nrk nrm nrn nro nrr nrs nry nsa nsb nsc nsk nsm nsn nso nsr nss nsy nya nyc nyk nym nyn nyo nys nyy oaa oab oac oak oam oan oao oar oas ob- oba obb obc obk obm obn obo obr obs oby oc- oca ocb occ ock ocm ocn oco ocr ocs oka okb okc okk oko okr oks om- oma omb omc omm omn omo omr oms omy on- ona onb onc onk onn ono onr ons ony oo- ooa oob ooc ook oom oon ooo oor oos or- ora orb orc ork orm orn oro orr ors ory os- osa osb osc osk osm osn oso osr oss oya oyo oys ra- raa rab rac rak ram ran rao rar ras ray rba rbb rbc rbk rbm rbn rbo rbr rbs rca rcb rcc rcm rcn rco rcr rcs rkb rkc rkk rkm rko rks rky rma rmb rmc rmm rmn rmo rmr rms rna rnb rnc rnm rnn rno rnr rns rny roa rob roc rok rom ron roo ror ros roy rra rrb rrc rrk rrm rrn rrr rrs rsa rsb rsc rsk rsm rsn rso rsr rss ry- rya ryc ryk rym ryn ryo ryr rys ryy saa sab sac sak sam san sao sar sas say sba sbb sbc sbk sbm sbn sbo sbr sbs sby sca scb scc sck scm scn sco scr scs sk- ska skb skc skk skm sko skr sks sky sma smb smc smk smm smn smo smr sms smy sna snb snc snk snm snn sno snr sns sny soa sob soc sok som son soo sor sos soy sr- sra srb src srk srm srn sro srr srs sry ss- ssa ssb ssc ssk ssm ssn sso ssr sss sy- sya syb syc syk sym syn syr sys yaa yab yac yak yam yan yao yar yas yay ybc ybm ybr ybs yby yca ycc yco ycs ycy yka ykk ykm ykn yma ymc ymm ymo yms yna ynk ynn yns yny yob yoc yok yom yon yoo yor yos yoy yra yrc yrn yro yrs ysa ysb ysc ysk ysm yso ysr yss ysy yyb yyc yys yyy