a-a a-c aaa aac aah aak aan aao aar aas ac- aca acc ach ack acn aco acr acs aha ahc ahh ahk ahn aho ahr ahs aka akc akh akk akn ako akr aks an- ana anc anh ank ann ano anr ans aoa aoc aoh aok aon aoo aor aos ar- ara arc arh ark arn aro arr ars as- asa asc ash ask asn aso asr ass c-- caa cac cah cak can cao car cas cca ccc cch cck ccn cco ccr ccs ch- cha chc chh chk chn cho chr chs cka ckc ckh cko cks cn- cna cnc cnh cnn cno cnr cns co- coa coc coh cok con coo cor cos cra crc crh crk crn cro crr crs csa csc csh csk csn cso csr css haa hac hah hak han hao har has hca hcc hch hck hcn hco hcr hcs hha hhc hhh hhk hhn hho hhr hhs hka hkh hkk hkn hko hkr hks hna hnc hnh hnk hnn hno hns hoa hoc hoh hok hon hoo hor hos hr- hra hrc hrh hrk hrn hro hrr hrs hsa hsc hsh hsk hsn hsr hss ka- kaa kac kah kak kan kao kar kas kca kcc kch kck kcn kcr kcs kha khh khk khn kho khr khs kkc kkh kkk kkn kkr kks kn- kna knc knk knn kno knr koa koc koh kok kon koo kor kos kra krc krk krn kro krr krs ksa ksc ksh ksk ksn kso ksr kss naa nac nah nak nan nao nar nas nca ncc nch nck ncn nco ncr ncs nha nhc nhh nhk nhn nhr nhs nka nkc nkk nkn nko nkr nks nna nnc nnh nnk nnn nno nns no- noa noc noh nok non noo nor nos nra nrc nrk nrn nro nrr nrs nsa nsc nsh nsk nsn nso nsr nss oaa oac oah oak oan oao oar oas oc- oca occ och ock ocn oco ocr ocs oha ohc ohh ohn oho ohr ohs oka okc okk oko okr oks on- ona onc onh onk onn ono onr ons oo- ooa ooc ooh ook oon ooo oor oos or- ora orc orh ork orn oro orr ors os- osa osc osh osk osn oso osr oss ra- raa rac rah rak ran rao rar ras rca rcc rch rcn rco rcr rcs rh- rha rhc rhh rhn rho rhr rhs rkc rkk rko rks rna rnc rnh rnn rno rnr rns roa roc roh rok ron roo ror ros rra rrc rrh rrk rrn rrr rrs rsa rsc rsh rsk rsn rso rsr rss saa sac sah sak san sao sar sas sca scc sch sck scn sco scr scs sh- sha shc shh shk shn sho shr shs sk- ska skc skh skk sko skr sks sna snc snk snn sno snr sns soa soc soh sok son soo sor sos sr- sra src srh srk srn sro srr srs ss- ssa ssc ssh ssk ssn sso ssr sss