-ic a-a a-b a-c a-i aaa aab aac aai aam aan aar aau ab- aba abb abc abi abm abn abr abu ac- aca acb acc aci acm acn acr acu ai- aia aib aic aii aim ain air aiu ama amb amc ami amm amn amr amu an- ana anb anc ani anm ann anr anu ar- ara arb arc ari arm arn arr aru au- aua aub auc aui aum aun aur b-u baa bab bac bai bam ban bar bau bba bbb bbc bbi bbm bbn bbr bbu bca bcb bcc bci bcm bcn bcr bcu bi- bia bib bic bii bim bin bir biu bma bmb bmc bmi bmm bmn bmr bmu bna bnb bnc bni bnn bnr bnu bra brb bri brm brn brr bru bua bub buc bui bum bun bur buu c-- caa cab cac cai cam can car cau cba cbb cbc cbi cbm cbn cbr cbu cca ccb ccc cci ccm ccn ccr ccu ci- cia cib cic cii cim cin cir ciu cma cmb cmc cmi cmm cmn cmr cmu cn- cna cnb cnc cni cnm cnn cnr cnu cra crb crc cri crm crn crr cru cua cub cuc cui cum cun cur cuu ia- iaa iab iac iai iam ian iar iau iba ibb ibc ibi ibm ibn ibr ibu ica icb icc ici icm icn icr icu iia iib iic iii iim iin iir iiu im- ima imb imc imi imm imn imu in- ina inb inc ini inm inn inr inu ir- ira irb irc iri irm irn irr iru iu- iua iub iuc iui ium iur m-r maa mab mac mai mam man mar mau mba mbb mbc mbi mbm mbr mbu mc- mca mcb mcc mci mcm mcn mcr mcu mi- mia mib mic mii mim min mir miu mma mmb mmc mmi mmm mmn mmr mmu mna mnb mnc mni mnm mnn mnr mnu mra mrb mrc mri mrm mrn mrr mru mua mub muc mui mum mun mur muu n-i naa nab nac nai nam nan nar nau nba nbb nbc nbi nbm nbn nbr nbu nca ncb ncc nci ncm ncn ncr ncu nia nib nic nii nim nin nir niu nma nmb nmc nmi nmm nmn nmr nmu nna nnb nnc nni nnm nnn nnu nra nrb nrc nri nrm nrn nrr nru nua nub nuc nui num nun nur nuu ra- raa rab rac rai ram ran rar rau rba rbb rbc rbi rbm rbn rbr rbu rca rcb rcc rci rcm rcn rcr rcu ria rib ric rii rim rin rir rma rmb rmc rmi rmm rmn rmr rna rnb rnc rni rnm rnn rnr rnu rra rrb rrc rri rrm rrn rrr rru rua rub ruc rui rum run rur ruu ua- uaa uab uac uai uam uan uar uau uba ubb ubc ubi ubn ubr ubu uca ucb ucc uci ucm ucn ucr ucu uia uib uic uii uim uin uir uiu um- uma umb umc umi umm umn umr umu un- una unb unc uni unm unn unr unu ur- ura urb urc uri urm urn urr uru uua uuc uum uun uur uuu