-ic a-a a-b a-c a-i aaa aab aac aah aai aak aar ab- aba abb abc abh abi abk abr ac- aca acb acc ach aci ack acr aha ahb ahc ahh ahi ahk ahr ai- aia aib aic aih aii aik air aka akb akc akh aki akk akr ar- ara arb arc arh ari ark arr baa bab bac bah bai bak bar bba bbb bbc bbh bbi bbk bbr bca bcb bcc bch bci bck bcr bha bhb bhc bhh bhi bhk bhr bi- bia bib bic bih bii bik bir bka bkb bkc bkk bkr bra brb brh bri brk brr c-- caa cab cac cah cai cak car cba cbb cbc cbh cbi cbk cbr cca ccb ccc cch cci cck ccr ch- cha chb chc chh chi chk chr ci- cia cib cic cih cii cik cir cka ckb ckc ckh cki cra crb crc crh cri crk crr h-i haa hab hac hah hai hak har hba hbb hbc hbh hbi hbk hbr hca hcb hcc hch hci hck hcr hha hhb hhc hhh hhi hhk hhr hia hib hic hih hii hik hir hka hkb hkh hki hkk hkr hr- hra hrb hrc hrh hri hrk hrr ia- iaa iab iac iah iai iar iba ibb ibc ibh ibi ibk ibr ica icb icc ich ici ick icr iha ihb ihc ihh ihi ihk ihr iia iib iic iih iii iir ika ikb ikc iki ikk ikr ir- ira irb irc iri irk irr ka- kaa kab kac kah kai kak kar kba kbb kbc kbh kbi kbk kbr kca kcb kcc kch kci kck kcr kha khh khi khk khr kia kib kic kih kii kik kir kkb kkc kkh kki kkk kkr kra krc kri krk krr ra- raa rab rac rah rai rak rar rba rbb rbc rbh rbi rbk rbr rca rcb rcc rch rci rcr rh- rha rhb rhc rhh rhi rhr ria rib ric rih rii rik rir rkb rkc rkk rra rrb rrc rrh rri rrk rrr