a-a a-t aaa aaf aam aan aao aat af- afa aff afm afn afo aft ama amf amm amn amo amt an- ana anf anm ann ano ant aoa aof aom aon aoo aot at- ata atf atm atn ato att faa faf fam fan fao fat ffa fff ffm ffn ffo fft fma fmf fmm fmn fmo fmt fna fnf fnm fnn fnt foa fof fom fon foo fot fta ftf ftm ftn fto ftt m-f m-o maa maf mam man mao mat mfa mff mfm mfn mfo mft mma mmf mmm mmn mmo mmt mna mnf mnm mnn mno mnt moa mof mom mon moo mot mta mtf mtm mtn mto mtt naa naf nam nan nao nat nfa nff nfn nfo nft nma nmm nmn nmo nmt nna nnf nnm nnn nno nnt no- noa nof nom non noo not nta ntf ntm ntn nto ntt oaa oaf oam oan oao oat of- ofa off ofm ofn ofo oft om- oma omf omm omn omo omt on- ona onf onn ono ont oo- ooa oof oom oon ooo oot ot- ota otf otm otn oto ott taa taf tam tan tao tat tfa tff tfm tfn tfo tft tma tmf tmm tmn tmo tmt tna tnf tnm tnn tno tnt to- toa tof tom ton too tot tta ttf ttm ttn tto ttt