-ic a-a a-b a-c a-i aaa aab aac aah aai aak aan aar aas ab- aba abb abc abh abi abk abn abr abs ac- aca acb acc ach aci ack acn acr acs aha ahb ahc ahh ahi ahk ahn ahr ahs ai- aia aib aic aih aii aik ain air ais aka akb akc akh aki akk akn akr aks an- ana anb anc anh ani ank ann anr ans ar- ara arb arc arh ari ark arn arr ars as- asa asb asc ash asi ask asn asr ass baa bab bac bah bai bak ban bar bas bba bbb bbc bbh bbi bbk bbn bbr bbs bca bcb bcc bch bci bck bcn bcr bcs bha bhb bhc bhh bhi bhk bhr bhs bi- bia bib bic bih bii bik bin bir bis bka bkb bkc bkk bkn bkr bks bna bnb bnc bni bnk bnn bnr bns bra brb brh bri brk brn brr brs bsa bsb bsc bsh bsi bsk bsn bsr bss c-- caa cab cac cah cai cak can car cas cba cbb cbc cbh cbi cbk cbn cbr cbs cca ccb ccc cch cci cck ccn ccr ccs ch- cha chb chc chh chi chk chn chr chs ci- cia cib cic cih cii cik cin cir cis cka ckb ckc ckh cki cks cn- cna cnb cnc cnh cni cnn cnr cns cra crb crc crh cri crk crn crr crs csa csb csc csh csi csk csn csr css h-i haa hab hac hah hai hak han har has hba hbb hbc hbh hbi hbk hbn hbr hbs hca hcb hcc hch hci hck hcn hcr hcs hha hhb hhc hhh hhi hhk hhn hhr hhs hia hib hic hih hii hik hin hir his hka hkb hkh hki hkk hkn hkr hks hna hnb hnc hnh hnk hnn hns hr- hra hrb hrc hrh hri hrk hrn hrr hrs hsa hsb hsc hsh hsi hsk hsn hsr hss ia- iaa iab iac iah iai ian iar ias iba ibb ibc ibh ibi ibk ibn ibr ibs ica icb icc ich ici ick icn icr ics iha ihb ihc ihh ihi ihk ihn ihr ihs iia iib iic iih iii iin iir iis ika ikb ikc iki ikk ikr iks in- ina inb inc inh ini ink inn inr ins ir- ira irb irc iri irk irn irr irs is- isa isb isc ish isi isk isn isr iss ka- kaa kab kac kah kai kak kan kar kas kba kbb kbc kbh kbi kbk kbn kbr kbs kca kcb kcc kch kci kck kcn kcr kcs kha khh khi khk khn khr khs kia kib kic kih kii kik kin kir kis kkb kkc kkh kki kkk kkn kkr kks kn- kna knc kni knk knn knr kra krc kri krk krn krr krs ksa ksb ksc ksh ksi ksk ksn ksr kss n-i naa nab nac nah nai nak nan nar nas nba nbb nbc nbi nbk nbn nbr nbs nca ncb ncc nch nci nck ncn ncr ncs nha nhb nhc nhh nhi nhk nhn nhr nhs nia nib nic nih nii nik nin nir nis nka nkc nki nkk nkn nkr nks nna nnb nnc nnh nni nnk nnn nns nra nrb nrc nri nrk nrn nrr nrs nsa nsb nsc nsh nsi nsk nsn nsr nss ra- raa rab rac rah rai rak ran rar ras rba rbb rbc rbh rbi rbk rbn rbr rbs rca rcb rcc rch rci rcn rcr rcs rh- rha rhb rhc rhh rhi rhn rhr rhs ria rib ric rih rii rik rin rir ris rkb rkc rkk rks rna rnb rnc rnh rni rnn rnr rns rra rrb rrc rrh rri rrk rrn rrr rrs rsa rsb rsc rsh rsi rsk rsn rsr rss saa sab sac sah sai sak san sar sas sba sbb sbc sbh sbi sbk sbn sbr sbs sca scb scc sch sci sck scn scr scs sh- sha shb shc shh shi shk shn shr shs sia sib sic sih sii sik sin sir sis sk- ska skb skc skh ski skk skr sks sna snb snc sni snk snn snr sns sr- sra srb src srh sri srk srn srr srs ss- ssa ssb ssc ssh ssi ssk ssn ssr sss