a-a a-b aaa aab aad aae aag aan aap ab- aba abb abd abe abg abn abp ad- ada adb add ade adg adn adp aea aeb aed aee aeg aen aep ag- aga agb agd age agg agn agp an- ana anb and ane ang ann anp ap- apa apb apd ape apg apn app b-p baa bab bad bae bag ban bap bba bbb bbd bbe bbg bbn bbp bda bdb bdd bde bdg bdp be- bea beb bed bee beg ben bep bga bgb bgd bge bgg bgn bgp bna bnb bnd bne bng bnn bnp bpa bpb bpd bpe bpg bpn bpp daa dab dad dae dag dan dap dba dbb dbd dbe dbg dbn dbp dda ddb ddd dde ddg ddn ddp de- dea deb ded dee deg den dep dga dgd dge dgg dgn dgp dna dnb dnd dne dng dnn dnp dpa dpb dpd dpe dpg dpn dpp eaa eab ead eae eag ean eap eba ebb ebd ebe ebg ebn ebp ed- eda edb edd ede edg edn edp eea eeb eed eee eeg een eep ega egb egd ege egg egn egp en- ena enb end ene eng enn enp ep- epa epb epd epe epg epn epp g-d g-p gaa gab gad gae gag gan gap gba gbd gbe gbg gbn gbp gda gdb gdd gde gdn gdp ge- gea geb ged gee geg gen gep gga ggb ggd ggg ggn ggp gna gnb gnd gne gnn gnp gpa gpb gpd gpe gpg gpn gpp naa nab nad nae nag nan nap nba nbb nbd nbe nbg nbn nbp nda ndb ndd nde ndg ndn ndp ne- nea neb ned nee neg nen nep nga ngb ngd nge ngg ngn ngp nna nnb nne nng nnn nnp npa npb npd npe npg npn npp p-p paa pab pad pae pag pan pap pba pbb pbd pbe pbg pbn pbp pda pdb pdd pde pdg pdn pdp pea peb ped pee peg pen pep pga pgb pgd pge pgg pgn pgp pn- pna pnb pnd pne png pnn pnp ppa ppb ppd ppe ppg ppn ppp