-ic a-a a-b a-c a-i aaa aab aac aah aai aak aar aau ab- aba abb abc abh abi abk abr abu ac- aca acb acc ach aci ack acr acu aha ahb ahc ahh ahi ahk ahr ahu ai- aia aib aic aih aii aik air aiu aka akb akc akh aki akk akr aku ar- ara arb arc arh ari ark arr aru au- aua aub auc auh aui auk aur b-u baa bab bac bah bai bak bar bau bba bbb bbc bbh bbi bbk bbr bbu bca bcb bcc bch bci bck bcr bcu bha bhb bhc bhh bhi bhk bhr bhu bi- bia bib bic bih bii bik bir biu bka bkb bkc bkk bkr bra brb brh bri brk brr bru bua bub buc buh bui buk bur buu c-- caa cab cac cah cai cak car cau cba cbb cbc cbh cbi cbk cbr cbu cca ccb ccc cch cci cck ccr ccu ch- cha chb chc chh chi chk chr chu ci- cia cib cic cih cii cik cir ciu cka ckb ckc ckh cki cra crb crc crh cri crk crr cru cua cub cuc cuh cui cuk cur cuu h-i haa hab hac hah hai hak har hau hba hbb hbc hbh hbi hbk hbr hbu hca hcb hcc hch hci hck hcr hha hhb hhc hhh hhi hhk hhr hhu hia hib hic hih hii hik hir hiu hka hkb hkh hki hkk hkr hku hr- hra hrb hrc hrh hri hrk hrr hru hua hub huc huh hui huk hur huu ia- iaa iab iac iah iai iar iau iba ibb ibc ibh ibi ibk ibr ibu ica icb icc ich ici ick icr icu iha ihb ihc ihh ihi ihk ihr ihu iia iib iic iih iii iir iiu ika ikb ikc iki ikk ikr iku ir- ira irb irc iri irk irr iru iu- iua iub iuc iui iur ka- kaa kab kac kah kai kak kar kau kba kbb kbc kbh kbi kbk kbr kbu kca kcb kcc kch kci kck kcr kcu kha khh khi khk khr khu kia kib kic kih kii kik kir kiu kkb kkc kkh kki kkk kkr kku kra krc kri krk krr kru kub kuc kuh kui kuk kur kuu ra- raa rab rac rah rai rak rar rau rba rbb rbc rbh rbi rbk rbr rbu rca rcb rcc rch rci rcr rcu rh- rha rhb rhc rhh rhi rhr rhu ria rib ric rih rii rik rir rkb rkc rkk rku rra rrb rrc rrh rri rrk rrr rru rua rub ruc ruh rui ruk rur ruu ua- uaa uab uac uah uai uak uar uau uba ubb ubc ubh ubi ubk ubr ubu uca ucb ucc uch uci uck ucr ucu uha uhb uhc uhh uhi uhr uhu uia uib uic uii uir uiu uka ukb ukc uki ukk ukr uku ur- ura urb urc uri urk urr uru uua uuc uur uuu