a-a a-c aaa aac aad aaf aam aao aar ac- aca acc acd acf acm aco acr ad- ada adc add adf adm ado adr af- afa afc afd aff afm afo afr ama amc amd amf amm amo amr aoa aoc aod aof aom aoo aor ar- ara arc ard arf arm aro arr c-- caa cac cad caf cam cao car cca ccc ccd ccf ccm cco ccr cda cdc cdd cdf cdm cdo cdr cfa cfc cfd cff cfm cfo cfr cma cmc cmd cmf cmm cmo cmr co- coa coc cod cof com coo cor cra crc crd crf crm cro crr daa dac dad daf dam dao dar dca dcc dcd dcf dcm dco dcr dda ddc ddd ddf ddm ddo ddr dfa dfc dfd dff dfm dfo dfr dma dmc dmd dmf dmm dmo dmr doa doc dod dof dom doo dor dra drc drd drm dro drr faa fac fad faf fam fao far fca fcc fcd fcf fcm fco fcr fda fdc fdd fdf fdm fdo fdr ffa ffc ffd fff ffm ffo ffr fma fmc fmd fmf fmm fmo fmr foa foc fof fom foo for fra frc frd frf frm fro frr m-f m-o m-r maa mac mad maf mam mao mar mc- mca mcc mcd mcf mcm mco mcr mda mdc mdd mdf mdm mdo mdr mfa mfc mfd mff mfm mfo mfr mma mmc mmd mmf mmm mmo mmr moa moc mod mof mom moo mor mra mrc mrd mrf mrm mro mrr oaa oac oad oaf oam oao oar oc- oca occ ocd ocf ocm oco ocr oda odc odd odf odm odo odr of- ofa ofc ofd off ofm ofo ofr om- oma omc omd omf omm omo omr oo- ooa ooc ood oof oom ooo oor or- ora orc ord orf orm oro orr ra- raa rac rad raf ram rao rar rca rcc rcd rcf rcm rco rcr rda rdc rdd rdf rdm rdo rdr rfa rfc rfd rff rfm rfo rfr rma rmc rmd rmf rmm rmo rmr roa roc rod rof rom roo ror rra rrc rrd rrf rrm rrr