-ic a-a a-b a-c a-i aaa aab aac aah aai aan aao aar aas aau ab- aba abb abc abh abi abn abo abr abs abu ac- aca acb acc ach aci acn aco acr acs acu aha ahb ahc ahh ahi ahn aho ahr ahs ahu ai- aia aib aic aih aii ain aio air ais aiu an- ana anb anc anh ani ann ano anr ans anu aoa aob aoc aoh aoi aon aoo aor aos aou ar- ara arb arc arh ari arn aro arr ars aru as- asa asb asc ash asi asn aso asr ass asu au- aua aub auc auh aui aun auo aur aus b-u baa bab bac bah bai ban bao bar bas bau bba bbb bbc bbh bbi bbn bbo bbr bbs bbu bca bcb bcc bch bci bcn bco bcr bcs bcu bha bhb bhc bhh bhi bho bhr bhs bhu bi- bia bib bic bih bii bin bio bir bis biu bna bnb bnc bni bnn bno bnr bns bnu boa bob boc boh boi bon boo bor bos bou bra brb brh bri brn bro brr brs bru bsa bsb bsc bsh bsi bsn bso bsr bss bsu bua bub buc buh bui bun buo bur bus buu c-- caa cab cac cah cai can cao car cas cau cba cbb cbc cbh cbi cbn cbo cbr cbs cbu cca ccb ccc cch cci ccn cco ccr ccs ccu ch- cha chb chc chh chi chn cho chr chs chu ci- cia cib cic cih cii cin cio cir cis ciu cn- cna cnb cnc cnh cni cnn cno cnr cns cnu co- coa cob coc coh coi con coo cor cos cou cra crb crc crh cri crn cro crr crs cru csa csb csc csh csi csn cso csr css csu cua cub cuc cuh cui cun cuo cur cus cuu h-i haa hab hac hah hai han hao har has hau hba hbb hbc hbh hbi hbn hbo hbr hbs hbu hca hcb hcc hch hci hcn hco hcr hcs hha hhb hhc hhh hhi hhn hho hhr hhs hhu hia hib hic hih hii hin hio hir his hiu hna hnb hnc hnh hnn hno hns hnu hoa hob hoc hoh hoi hon hoo hor hos hou hr- hra hrb hrc hrh hri hrn hro hrr hrs hru hsa hsb hsc hsh hsi hsn hsr hss hsu hua hub huc huh hui hun huo hur hus huu ia- iaa iab iac iah iai ian iao iar ias iau iba ibb ibc ibh ibi ibn ibo ibr ibs ibu ica icb icc ich ici icn ico icr ics icu iha ihb ihc ihh ihi ihn iho ihr ihs ihu iia iib iic iih iii iin iio iir iis iiu in- ina inb inc inh ini inn ino inr ins inu io- ioa iob ioc ioh ioi ion ioo ior ios iou ir- ira irb irc iri irn iro irr irs iru is- isa isb isc ish isi isn iso isr iss isu iu- iua iub iuc iui iur ius n-i naa nab nac nah nai nan nao nar nas nau nba nbb nbc nbi nbn nbo nbr nbs nbu nca ncb ncc nch nci ncn nco ncr ncs ncu nha nhb nhc nhh nhi nhn nhr nhs nhu nia nib nic nih nii nin nio nir nis niu nna nnb nnc nnh nni nnn nno nns nnu no- noa nob noc noh noi non noo nor nos nou nra nrb nrc nri nrn nro nrr nrs nru nsa nsb nsc nsh nsi nsn nso nsr nss nsu nua nub nuc nuh nui nun nuo nur nus nuu o-i oaa oab oac oah oai oan oao oar oas oau ob- oba obb obc obh obi obn obo obr obs obu oc- oca ocb occ och oci ocn oco ocr ocs ocu oha ohc ohh ohi ohn oho ohr ohs ohu oia oib oic oii oin oio oir ois oiu on- ona onb onc onh oni onn ono onr ons onu oo- ooa oob ooc ooh ooi oon ooo oor oos or- ora orb orc orh ori orn oro orr ors oru os- osa osb osc osh osi osn oso osr oss osu ou- oua ouc ouh oui oun ouo our ous ra- raa rab rac rah rai ran rao rar ras rau rba rbb rbc rbh rbi rbn rbo rbr rbs rbu rca rcb rcc rch rci rcn rco rcr rcs rcu rh- rha rhb rhc rhh rhi rhn rho rhr rhs rhu ria rib ric rih rii rin rio rir ris rna rnb rnc rnh rni rnn rno rnr rns rnu roa rob roc roh roi ron roo ror ros rou rra rrb rrc rrh rri rrn rrr rrs rru rsa rsb rsc rsh rsi rsn rso rsr rss rsu rua rub ruc ruh rui run ruo rur rus ruu saa sab sac sah sai san sao sar sas sau sba sbb sbc sbh sbi sbn sbo sbr sbs sbu sca scb scc sch sci scn sco scr scs scu sh- sha shb shc shh shi shn sho shr shs shu sia sib sic sih sii sin sio sir sis siu sna snb snc sni snn sno snr sns snu soa sob soc soh soi son soo sor sos sou sr- sra srb src srh sri srn sro srr srs ss- ssa ssb ssc ssh ssi ssn sso ssr sss ssu sua sub suc suh sui sun suo sur sus suu ua- uaa uab uac uah uai uan uao uar uas uau uba ubb ubc ubh ubi ubn ubo ubr ubs ubu uca ucb ucc uch uci ucn uco ucr ucs ucu uha uhb uhc uhh uhi uho uhr uhs uhu uia uib uic uii uin uio uir uis uiu un- una unb unc unh uni unn uno unr uns unu uoa uob uoc uon uoo uor uos ur- ura urb urc uri urn uro urr urs uru usa usb usc ush usi usn uso