a-a aaa aad aaf aam aan aao aar ad- ada add adf adm adn ado adr af- afa afd aff afm afn afo afr ama amd amf amm amn amo amr an- ana and anf anm ann ano anr aoa aod aof aom aon aoo aor ar- ara ard arf arm arn aro arr daa dad daf dam dan dao dar dda ddd ddf ddm ddn ddo ddr dfa dfd dff dfm dfn dfo dfr dma dmd dmf dmm dmn dmo dmr dna dnd dnf dnm dnn dno dnr doa dod dof dom don doo dor dra drd drm drn dro drr faa fad faf fam fan fao far fda fdd fdf fdm fdn fdo fdr ffa ffd fff ffm ffn ffo ffr fma fmd fmf fmm fmn fmo fmr fna fnd fnf fnm fnn fnr foa fof fom fon foo for fra frd frf frm frn fro frr m-f m-o m-r maa mad maf mam man mao mar mda mdd mdf mdm mdn mdo mdr mfa mfd mff mfm mfn mfo mfr mma mmd mmf mmm mmn mmo mmr mna mnf mnm mnn mno mnr moa mod mof mom mon moo mor mra mrd mrf mrm mrn mro mrr naa nad naf nam nan nao nar nda ndd ndf ndm ndn ndo ndr nfa nfd nff nfn nfo nfr nma nmd nmm nmn nmo nmr nna nnf nnm nnn nno no- noa nod nof nom non noo nor nra nrd nrf nrm nrn nro nrr oaa oad oaf oam oan oao oar oda odd odf odm odn odo odr of- ofa ofd off ofm ofn ofo ofr om- oma omd omf omm omn omo omr on- ona ond onf onn ono onr oo- ooa ood oof oom oon ooo oor or- ora ord orf orm orn oro orr ra- raa rad raf ram ran rao rar rda rdd rdf rdm rdn rdo rdr rfa rfd rff rfm rfn rfo rfr rma rmd rmf rmm rmn rmo rmr rna rnd rnm rnn rno rnr roa rod rof rom ron roo ror rra rrd rrf rrm rrn rrr