-ic a-a a-b a-c a-i aaa aab aac aad aai aak aao aar aau aay ab- aba abb abc abd abi abk abo abr abu aby ac- aca acb acc acd aci ack aco acr acu acy ad- ada adb adc add adi adk ado adr adu ady ai- aia aib aic aid aii aik aio air aiu aiy aka akb akc akd aki akk ako akr aku aoa aob aoc aod aoi aok aoo aor aou ar- ara arb arc ard ari ark aro arr aru ary au- aua aub auc aud aui auk auo aur ay- aya ayc ayd ayi ayk ayo ayr ayu b-u baa bab bac bad bai bak bao bar bau bay bba bbb bbc bbd bbi bbk bbo bbr bbu bby bca bcb bcc bcd bci bck bco bcr bcu bcy bda bdb bdc bdd bdi bdk bdo bdr bdu bdy bi- bia bib bic bid bii bik bio bir biu biy bka bkb bkc bkk bko bkr boa bob boc bod boi bok boo bor bou boy bra brb brd bri brk bro brr bru bry bua bub buc bud bui buk buo bur buu buy by- bya byc byd byi byk byo byr byu c-- caa cab cac cad cai cak cao car cau cay cba cbb cbc cbd cbi cbk cbo cbr cbu cby cca ccb ccc ccd cci cck cco ccr ccu cda cdb cdc cdd cdi cdk cdo cdr cdu cdy ci- cia cib cic cid cii cik cio cir ciu cka ckb ckc ckd cki cko cky co- coa cob coc cod coi cok coo cor cou coy cra crb crc crd cri crk cro crr cru cry cua cub cuc cud cui cuk cuo cur cuu cuy cya cyb cyc cyd cyk cyo cyr daa dab dac dad dai dak dao dar dau day dba dbb dbc dbd dbi dbk dbo dbr dbu dby dca dcb dcc dcd dci dck dco dcr dcu dda ddb ddc ddd ddi ddk ddo ddr ddu ddy di- dia dib dic did dii dik dio dir diu diy dka dkb dkc dki dkk dko dkr dku doa dob doc dod doi dok doo dor dou doy dra drb drc drd dri drk dro drr dru dry dua dub duc dud dui duk duo dur duy dy- dya dyb dyc dyd dyk dyo dyr dyu dyy i-d ia- iaa iab iac iad iai iao iar iau iba ibb ibc ibd ibi ibk ibo ibr ibu iby ica icb icc icd ici ick ico icr icu icy ida idb idc idd idi idk ido idr idu idy iia iib iic iid iii iio iir iiu ika ikb ikc iki ikk iko ikr iku io- ioa iob ioc iod ioi ioo ior iou ir- ira irb irc ird iri irk iro irr iru iry iu- iua iub iuc iud iui iur iya iyc iyo iyr iyy ka- kaa kab kac kad kai kak kao kar kau kay kba kbb kbc kbd kbi kbk kbo kbr kbu kca kcb kcc kcd kci kck kcr kcu kda kdb kdc kdk kdo kdr kdu kdy kia kib kic kid kii kik kio kir kiu kkb kkc kki kkk kkr kku kky koa kob koc kod koi kok koo kor kou koy kra krc krd kri krk kro krr kru kry kub kuc kud kui kuk kur kuu kuy kya kyc kyd kyo kyr kyu o-i oaa oab oac oad oai oak oao oar oau ob- oba obb obc obd obi obk obo obr obu oby oc- oca ocb occ ocd oci ock oco ocr ocu oda odb odc odd odi odo odr odu oia oib oic oid oii oik oio oir oiu oka okb okc okd oki okk oko okr oku oo- ooa oob ooc ood ooi ook ooo oor or- ora orb orc ord ori ork oro orr oru ory ou- oua ouc oud oui ouk ouo our oya oyd oyi oyo ra- raa rab rac rad rai rak rao rar rau ray rba rbb rbc rbd rbi rbk rbo rbr rbu rca rcb rcc rcd rci rco rcr rcu rda rdb rdc rdd rdi rdo rdr rdu rdy ria rib ric rid rii rik rio rir riy rkb rkc rkk rko rku rky roa rob roc rod roi rok roo ror rou roy rra rrb rrc rrd rri rrk rrr rru rua rub ruc rud rui ruk ruo rur ruu ruy ry- rya ryc ryd ryk ryo ryr ryu ryy ua- uaa uab uac uad uai uak uao uar uau uay uba ubb ubc ubi ubk ubo ubr ubu uby uca ucb ucc ucd uci uck uco ucr ucu uda udb udc udd udi udk udo udr udu uia uib uic uid uii uio uir uiu uka ukb ukc uki ukk ukr uku uoa uob uoc uod uok uoo uor ur- ura urb urc urd uri urk uro urr uru ury uua uuc uur uuu uyc uyi uyo uyu yaa yab yac yad yai yak yao yar yau yay ybc ybi ybr yby yca ycc ycd yci yco ycu ycy yda ydo ydy yid yii yio yir yka yki ykk yob yoc yod yoi yok yoo yor you yoy yra yrc yro yru yua yud yui yuk yuo yur yuu yuy yyb yyc yyu yyy