a-a a-t a-z aaa aaf aam aan aao aar aat aaz af- afa aff afm afn afo afr aft afz ama amf amm amn amo amr amt amz an- ana anf anm ann ano anr ant anz aoa aof aom aon aoo aor aot ar- ara arf arm arn aro arr art arz at- ata atf atm atn ato atr att atz az- aza azf azm azn azo azt azz faa faf fam fan fao far fat faz ffa fff ffm ffn ffo ffr fft ffz fma fmf fmm fmn fmo fmr fmt fna fnf fnm fnn fnr fnt fnz foa fof fom fon foo for fot foz fra frf frm frn fro frr frt fta ftf ftm ftn fto ftr ftt ftz m-f m-o m-r maa maf mam man mao mar mat maz mfa mff mfm mfn mfo mfr mft mfz mma mmf mmm mmn mmo mmr mmt mmz mna mnf mnm mnn mno mnr mnt mnz moa mof mom mon moo mor mot moz mra mrf mrm mrn mro mrr mrt mrz mta mtf mtm mtn mto mtr mtt mza mzf mzm mzn mzt naa naf nam nan nao nar nat naz nfa nff nfn nfo nfr nft nma nmm nmn nmo nmr nmt nmz nna nnf nnm nnn nno nnt nnz no- noa nof nom non noo nor not noz nra nrf nrm nrn nro nrr nrt nrz nta ntf ntm ntn nto ntr ntt ntz nzf nzo nzz oaa oaf oam oan oao oar oat of- ofa off ofm ofn ofo ofr oft ofz om- oma omf omm omn omo omr omt omz on- ona onf onn ono onr ont oo- ooa oof oom oon ooo oor oot or- ora orf orm orn oro orr ort orz ot- ota otf otm otn oto otr ott otz oza ozm ozo ozt ozz ra- raa raf ram ran rao rar rat raz rfa rff rfm rfn rfo rfr rft rfz rma rmf rmm rmn rmo rmr rmt rna rnm rnn rno rnr rnt rnz roa rof rom ron roo ror rot roz rra rrf rrm rrn rrr rrt rta rtf rtm rtn rto rtr rtt rtz rza rzm rzo taa taf tam tan tao tar tat taz tfa tff tfm tfn tfo tfr tft tma tmf tmm tmn tmo tmr tmt tmz tna tnf tnm tnn tno tnr tnt tnz to- toa tof tom ton too tor tot toz tra trf trm trn tro trr trt trz tta ttf ttm ttn tto ttr ttt tza tzf zaa zaf zam zan zao zar zat zaz zfa zfn zfr zma zmm zmt znn zno zo- zoa zof zom zon zoo zor zot zro zta ztm ztr zzr zzt zzz