-ic a-a a-b a-c a-i aaa aab aac aad aai aam aao aar aau ab- aba abb abc abd abi abm abo abr abu ac- aca acb acc acd aci acm aco acr acu ad- ada adb adc add adi adm ado adr adu ai- aia aib aic aid aii aim aio air aiu ama amb amc amd ami amm amo amr amu aoa aob aoc aod aoi aom aoo aor aou ar- ara arb arc ard ari arm aro arr aru au- aua aub auc aud aui aum auo aur b-u baa bab bac bad bai bam bao bar bau bba bbb bbc bbd bbi bbm bbo bbr bbu bca bcb bcc bcd bci bcm bco bcr bcu bda bdb bdc bdd bdi bdm bdo bdr bdu bi- bia bib bic bid bii bim bio bir biu bma bmb bmc bmd bmi bmm bmo bmr bmu boa bob boc bod boi bom boo bor bou bra brb brd bri brm bro brr bru bua bub buc bud bui bum buo bur buu c-- caa cab cac cad cai cam cao car cau cba cbb cbc cbd cbi cbm cbo cbr cbu cca ccb ccc ccd cci ccm cco ccr ccu cda cdb cdc cdd cdi cdm cdo cdr cdu ci- cia cib cic cid cii cim cio cir ciu cma cmb cmc cmd cmi cmm cmo cmr cmu co- coa cob coc cod coi com coo cor cou cra crb crc crd cri crm cro crr cru cua cub cuc cud cui cum cuo cur cuu daa dab dac dad dai dam dao dar dau dba dbb dbc dbd dbi dbm dbo dbr dbu dca dcb dcc dcd dci dcm dco dcr dcu dda ddb ddc ddd ddi ddm ddo ddr ddu di- dia dib dic did dii dim dio dir diu dma dmb dmc dmd dmi dmm dmo dmr dmu doa dob doc dod doi dom doo dor dou dra drb drc drd dri drm dro drr dru dua dub duc dud dui dum duo dur i-d ia- iaa iab iac iad iai iam iao iar iau iba ibb ibc ibd ibi ibm ibo ibr ibu ica icb icc icd ici icm ico icr icu ida idb idc idd idi idm ido idr idu iia iib iic iid iii iim iio iir iiu im- ima imb imc imd imi imm imo imu io- ioa iob ioc iod ioi iom ioo ior iou ir- ira irb irc ird iri irm iro irr iru iu- iua iub iuc iud iui ium iur m-o m-r maa mab mac mad mai mam mao mar mau mba mbb mbc mbd mbi mbm mbo mbr mbu mc- mca mcb mcc mcd mci mcm mco mcr mcu mda mdb mdc mdd mdi mdm mdo mdr mdu mi- mia mib mic mid mii mim mio mir miu mma mmb mmc mmd mmi mmm mmo mmr mmu moa mob moc mod moi mom moo mor mou mra mrb mrc mrd mri mrm mro mrr mru mua mub muc mud mui mum mur muu o-i oaa oab oac oad oai oam oao oar oau ob- oba obb obc obd obi obm obo obr obu oc- oca ocb occ ocd oci ocm oco ocr ocu oda odb odc odd odi odm odo odr odu oia oib oic oid oii oim oio oir oiu om- oma omb omc omd omi omm omo omr omu oo- ooa oob ooc ood ooi oom ooo oor or- ora orb orc ord ori orm oro orr oru ou- oua ouc oud oui oum ouo our ra- raa rab rac rad rai ram rao rar rau rba rbb rbc rbd rbi rbm rbo rbr rbu rca rcb rcc rcd rci rcm rco rcr rcu rda rdb rdc rdd rdi rdm rdo rdr rdu ria rib ric rid rii rim rio rir rma rmb rmc rmd rmi rmm rmo rmr roa rob roc rod roi rom roo ror rou rra rrb rrc rrd rri rrm rrr rru rua rub ruc rud rui rum ruo rur ruu ua- uaa uab uac uad uai uam uao uar uau uba ubb ubc ubi ubo ubr ubu uca ucb ucc ucd uci ucm uco ucr ucu uda udb udc udd udi udm udo udr udu uia uib uic uid uii uim uio uir uiu um- uma umb umc umd umi umm umo umr umu uoa uob uoc uod uom uoo uor ur- ura urb urc urd uri urm uro urr uru uua uuc uum uur uuu