a-a a-t aaa aae aaf aak aao aat aea aee aef aek aeo aet af- afa afe aff afk afo aft aka ake akk ako aoa aoe aof aok aoo aot at- ata ate atf ato att eaa eae eaf eak eao eat eea eee eef eek eeo eet ef- efa efe eff efo eft eka eke ekf eko ekt eo- eoa eoe eof eok eoo eot eta ete etf etk eto ett faa fae faf fak fao fat fea fee fef fek feo fet ffa ffe fff ffk ffo fft fka fkf fkk fkt foa foe fof fok foo fot fta fte ftf ftk fto ftt k-t ka- kaa kae kaf kak kao kat ke- kea kee kef kek keo ket kfa kff kfo kke kkk kkt koa koe kof kok koo kot kta kte ktf ktk kto ktt oaa oae oaf oak oao oat oea oee oef oeo oet of- ofa ofe off ofo oft oka oke okk oko oo- ooa oof ook ooo oot ot- ota ote otf otk oto ott taa tae taf tak tao tat te- tea tee tef tek teo tet tfa tfe tff tfk tfo tft tka tke tkk tko tkt to- toa toe tof tok too tot tta tte ttf ttk tto ttt