a-a a-b aaa aab aad aae aag aak aan aap ab- aba abb abd abe abg abk abn abp ad- ada adb add ade adg adk adn adp aea aeb aed aee aeg aek aen aep ag- aga agb agd age agg agk agn agp aka akb akd ake akg akk akn akp an- ana anb and ane ang ank ann anp ap- apa apb apd ape apg apk apn app b-p baa bab bad bae bag bak ban bap bba bbb bbd bbe bbg bbk bbn bbp bda bdb bdd bde bdg bdk bdp be- bea beb bed bee beg bek ben bep bga bgb bgd bge bgg bgk bgn bgp bka bkb bke bkg bkk bkn bkp bna bnb bnd bne bng bnk bnn bnp bpa bpb bpd bpe bpg bpn bpp daa dab dad dae dag dak dan dap dba dbb dbd dbe dbg dbk dbn dbp dda ddb ddd dde ddg ddk ddn ddp de- dea deb ded dee deg dek den dep dga dgd dge dgg dgk dgn dgp dka dkb dke dkg dkk dkp dna dnb dnd dne dng dnk dnn dnp dpa dpb dpd dpe dpg dpk dpn dpp eaa eab ead eae eag eak ean eap eba ebb ebd ebe ebg ebk ebn ebp ed- eda edb edd ede edg edk edn edp eea eeb eed eee eeg eek een eep ega egb egd ege egg egn egp eka ekb ekd eke ekg ekp en- ena enb end ene eng enk enn enp ep- epa epb epd epe epg epn epp g-d g-p gaa gab gad gae gag gak gan gap gba gbd gbe gbg gbk gbn gbp gda gdb gdd gde gdk gdn gdp ge- gea geb ged gee geg gek gen gep gga ggb ggd ggg ggn ggp gka gkb gkd gkn gkp gna gnb gnd gne gnn gnp gpa gpb gpd gpe gpg gpk gpn gpp ka- kaa kab kad kae kag kak kan kap kba kbb kbd kbe kbk kbn kbp kda kdb kde kdg kdk kdp ke- kea keb ked kee keg kek ken kep kga kgb kgd kgp kkb kke kkk kkn kkp kn- kna knd kne kng knk knn knp kpa kpd kpe kpk kpn kpp naa nab nad nae nag nak nan nap nba nbb nbd nbe nbg nbk nbn nbp nda ndb ndd nde ndg ndk ndn ndp ne- nea neb ned nee neg nek nen nep nga ngb ngd nge ngg ngk ngn ngp nka nke nkk nkn nkp nna nnb nne nng nnk nnn nnp npa npb npd npe npg npn npp p-p paa pab pad pae pag pak pan pap pba pbb pbd pbe pbg pbk pbn pbp pda pdb pdd pde pdg pdk pdn pdp pea peb ped pee peg pek pen pep pga pgb pgd pge pgg pgk pgn pgp pka pkb pkd pke pkg pkn pkp pn- pna pnb pnd pne png pnk pnn pnp ppa ppb ppd ppe ppg ppk ppn ppp