-ic a-a a-b a-c a-i aaa aab aac aad aah aai aao aar aas aau ab- aba abb abc abd abh abi abo abr abs abu ac- aca acb acc acd ach aci aco acr acs acu ad- ada adb adc add adh adi ado adr ads adu aha ahb ahc ahd ahh ahi aho ahr ahs ahu ai- aia aib aic aid aih aii aio air ais aiu aoa aob aoc aod aoh aoi aoo aor aos aou ar- ara arb arc ard arh ari aro arr ars aru as- asa asb asc asd ash asi aso asr ass asu au- aua aub auc aud auh aui auo aur aus b-u baa bab bac bad bah bai bao bar bas bau bba bbb bbc bbd bbh bbi bbo bbr bbs bbu bca bcb bcc bcd bch bci bco bcr bcs bcu bda bdb bdc bdd bdh bdi bdo bdr bds bdu bha bhb bhc bhd bhh bhi bho bhr bhs bhu bi- bia bib bic bid bih bii bio bir bis biu boa bob boc bod boh boi boo bor bos bou bra brb brd brh bri bro brr brs bru bsa bsb bsc bsd bsh bsi bso bsr bss bsu bua bub buc bud buh bui buo bur bus buu c-- caa cab cac cad cah cai cao car cas cau cba cbb cbc cbd cbh cbi cbo cbr cbs cbu cca ccb ccc ccd cch cci cco ccr ccs ccu cda cdb cdc cdd cdh cdi cdo cdr cds cdu ch- cha chb chc chd chh chi cho chr chs chu ci- cia cib cic cid cih cii cio cir cis ciu co- coa cob coc cod coh coi coo cor cos cou cra crb crc crd crh cri cro crr crs cru csa csb csc csd csh csi cso csr css csu cua cub cuc cud cuh cui cuo cur cus cuu daa dab dac dad dah dai dao dar das dau dba dbb dbc dbd dbh dbi dbo dbr dbs dbu dca dcb dcc dcd dci dco dcr dcs dcu dda ddb ddc ddd ddh ddi ddo ddr dds ddu dh- dha dhb dhc dhd dhh dhi dho dhr dhs dhu di- dia dib dic did dih dii dio dir dis diu doa dob doc dod doh doi doo dor dos dou dra drb drc drd dri dro drr drs dru dsa dsb dsc dsd dsh dsi dso dsr dss dsu dua dub duc dud duh dui duo dur dus h-i haa hab hac had hah hai hao har has hau hba hbb hbc hbd hbh hbi hbo hbr hbs hbu hca hcb hcc hcd hch hci hco hcr hcs hda hdb hdc hdd hdh hdi hdo hdr hds hdu hha hhb hhc hhd hhh hhi hho hhr hhs hhu hia hib hic hid hih hii hio hir his hiu hoa hob hoc hod hoh hoi hoo hor hos hou hr- hra hrb hrc hrd hrh hri hro hrr hrs hru hsa hsb hsc hsd hsh hsi hsr hss hsu hua hub huc hud huh hui huo hur hus huu i-d ia- iaa iab iac iad iah iai iao iar ias iau iba ibb ibc ibd ibh ibi ibo ibr ibs ibu ica icb icc icd ich ici ico icr ics icu ida idb idc idd idh idi ido idr ids idu iha ihb ihc ihd ihh ihi iho ihr ihs ihu iia iib iic iid iih iii iio iir iis iiu io- ioa iob ioc iod ioh ioi ioo ior ios iou ir- ira irb irc ird iri iro irr irs iru is- isa isb isc isd ish isi iso isr iss isu iu- iua iub iuc iud iui iur ius o-i oaa oab oac oad oah oai oao oar oas oau ob- oba obb obc obd obh obi obo obr obs obu oc- oca ocb occ ocd och oci oco ocr ocs ocu oda odb odc odd odh odi odo odr ods odu oha ohc ohd ohh ohi oho ohr ohs ohu oia oib oic oid oii oio oir ois oiu oo- ooa oob ooc ood ooh ooi ooo oor oos or- ora orb orc ord orh ori oro orr ors oru os- osa osb osc osd osh osi oso osr oss osu ou- oua ouc oud ouh oui ouo our ous ra- raa rab rac rad rah rai rao rar ras rau rba rbb rbc rbd rbh rbi rbo rbr rbs rbu rca rcb rcc rcd rch rci rco rcr rcs rcu rda rdb rdc rdd rdh rdi rdo rdr rds rdu rh- rha rhb rhc rhd rhh rhi rho rhr rhs rhu ria rib ric rid rih rii rio rir ris roa rob roc rod roh roi roo ror ros rou rra rrb rrc rrd rrh rri rrr rrs rru rsa rsb rsc rsd rsh rsi rso rsr rss rsu rua rub ruc rud ruh rui ruo rur rus ruu saa sab sac sad sah sai sao sar sas sau sba sbb sbc sbd sbh sbi sbo sbr sbs sbu sca scb scc scd sch sci sco scr scs scu sda sdb sdc sdd sdh sdi sdo sdr sds sdu sh- sha shb shc shd shh shi sho shr shs shu sia sib sic sid sih sii sio sir sis siu soa sob soc sod soh soi soo sor sos sou sr- sra srb src srd srh sri sro srr srs ss- ssa ssb ssc ssd ssh ssi sso ssr sss ssu sua sub suc sud suh sui suo sur sus suu ua- uaa uab uac uad uah uai uao uar uas uau uba ubb ubc ubh ubi ubo ubr ubs ubu uca ucb ucc ucd uch uci uco ucr ucs ucu uda udb udc udd udi udo udr uds udu uha uhb uhc uhd uhh uhi uho uhr uhs uhu uia uib uic uid uii uio uir uis uiu uoa uob uoc uod uoo uor uos ur- ura urb urc urd uri uro urr urs uru usa usb usc usd