a-a a-t aaa aad aak aan aao aat ad- ada add adk adn ado adt aka akd akk akn ako an- ana and ank ann ano ant aoa aod aok aon aoo aot at- ata atd atn ato att daa dad dak dan dao dat dda ddd ddk ddn ddo ddt dka dkk dko dkt dna dnd dnk dnn dno dnt doa dod dok don doo dot dta dtd dtk dtn dto dtt k-t ka- kaa kad kak kan kao kat kda kdk kdo kdt kkk kkn kkt kn- kna knd knk knn kno knt koa kod kok kon koo kot kta ktk ktn kto ktt naa nad nak nan nao nat nda ndd ndk ndn ndo ndt nka nkk nkn nko nkt nna nnk nnn nno nnt no- noa nod nok non noo not nta ntd ntk ntn nto ntt oaa oad oak oan oao oat oda odd odn odo odt oka okd okk oko on- ona ond onk onn ono ont oo- ooa ood ook oon ooo oot ot- ota otd otk otn oto ott taa tad tak tan tao tat tda tdd tdk tdn tdo tdt tka tkk tko tkt tna tnd tnk tnn tno tnt to- toa tod tok ton too tot tta ttd ttk ttn tto ttt