a-a a-c aaa aac aad aak aam aan aao aar ac- aca acc acd ack acm acn aco acr ad- ada adc add adk adm adn ado adr aka akc akd akk akm akn ako akr ama amc amd amk amm amn amo amr an- ana anc and ank anm ann ano anr aoa aoc aod aok aom aon aoo aor ar- ara arc ard ark arm arn aro arr c-- caa cac cad cak cam can cao car cca ccc ccd cck ccm ccn cco ccr cda cdc cdd cdk cdm cdn cdo cdr cka ckc ckd ckm cko cma cmc cmd cmk cmm cmn cmo cmr cn- cna cnc cnd cnm cnn cno cnr co- coa coc cod cok com con coo cor cra crc crd crk crm crn cro crr daa dac dad dak dam dan dao dar dca dcc dcd dck dcm dcn dco dcr dda ddc ddd ddk ddm ddn ddo ddr dka dkc dkk dkm dko dkr dma dmc dmd dmk dmm dmn dmo dmr dna dnc dnd dnk dnm dnn dno dnr doa doc dod dok dom don doo dor dra drc drd drk drm drn dro drr ka- kaa kac kad kak kam kan kao kar kca kcc kcd kck kcm kcn kcr kda kdc kdk kdm kdo kdr kkc kkk kkm kkn kkr kma kmc kmd kmk kmm kmo kn- kna knc knd knk knm knn kno knr koa koc kod kok kom kon koo kor kra krc krd krk krn kro krr m-o m-r maa mac mad mak mam man mao mar mc- mca mcc mcd mck mcm mcn mco mcr mda mdc mdd mdk mdm mdn mdo mdr mka mkc mkd mkk mkm mkn mko mkr mma mmc mmd mmk mmm mmn mmo mmr mna mnc mnk mnm mnn mno mnr moa moc mod mok mom mon moo mor mra mrc mrd mrk mrm mrn mro mrr naa nac nad nak nam nan nao nar nca ncc ncd nck ncm ncn nco ncr nda ndc ndd ndk ndm ndn ndo ndr nka nkc nkk nkm nkn nko nkr nma nmc nmd nmk nmm nmn nmo nmr nna nnc nnk nnm nnn nno no- noa noc nod nok nom non noo nor nra nrc nrd nrk nrm nrn nro nrr oaa oac oad oak oam oan oao oar oc- oca occ ocd ock ocm ocn oco ocr oda odc odd odm odn odo odr oka okc okd okk oko okr om- oma omc omd omm omn omo omr on- ona onc ond onk onn ono onr oo- ooa ooc ood ook oom oon ooo oor or- ora orc ord ork orm orn oro orr ra- raa rac rad rak ram ran rao rar rca rcc rcd rcm rcn rco rcr rda rdc rdd rdm rdn rdo rdr rkc rkk rkm rko rma rmc rmd rmm rmn rmo rmr rna rnc rnd rnm rnn rno rnr roa roc rod rok rom ron roo ror rra rrc rrd rrk rrm rrn rrr