a-a a-b a-t aaa aab aad aan aap aat aay ab- aba abb abd abn abp abt aby ad- ada adb add adn adp adt ady an- ana anb and ann anp ant any ap- apa apb apd apn app apt apy at- ata atb atd atn atp att ay- aya ayd ayn ayp ayt b-p baa bab bad ban bap bat bay bba bbb bbd bbn bbp bbt bby bda bdb bdd bdp bdt bdy bna bnb bnd bnn bnp bnt bpa bpb bpd bpn bpp bpt bpy bta btb btd btn btp btt bty by- bya byd byn byp byt daa dab dad dan dap dat day dba dbb dbd dbn dbp dbt dby dda ddb ddd ddn ddp ddt ddy dna dnb dnd dnn dnp dnt dny dpa dpb dpd dpn dpp dpt dta dtb dtd dtn dtp dtt dty dy- dya dyb dyd dyn dyp dyy naa nab nad nan nap nat nay nba nbb nbd nbn nbp nbt nda ndb ndd ndn ndp ndt ndy nna nnb nnn nnp nnt npa npb npd npn npp npt nta ntb ntd ntn ntp ntt nya nyd nyn nyp nyt nyy p-p paa pab pad pan pap pat pay pba pbb pbd pbn pbp pbt pby pda pdb pdd pdn pdp pdt pn- pna pnb pnd pnn pnp pnt pny ppa ppb ppd ppn ppp ppt pt- pta ptb ptd ptn ptp ptt pty py- pya pyb pyd pyn pyt taa tab tad tan tap tat tay tba tbb tbd tbn tbp tbt tda tdb tdd tdn tdp tdt tdy tna tnb tnd tnn tnp tnt tpa tpb tpd tpn tpp tpt tta ttb ttd ttn ttp ttt tty tya tyd tyn typ tyt yaa yab yad yan yap yat yay ybp yby yda ydn ydt ydy yna ynd ynn ynp yny ypa ypd yta ytd ytn ytp ytt yyb yyt yyy