a-a a-b aaa aab aad aae aag aah aan ab- aba abb abd abe abg abh abn ad- ada adb add ade adg adh adn aea aeb aed aee aeg aeh aen ag- aga agb agd age agg agh agn aha ahb ahd ahe ahg ahh ahn an- ana anb and ane ang anh ann baa bab bad bae bag bah ban bba bbb bbd bbe bbg bbh bbn bda bdb bdd bde bdg bdh be- bea beb bed bee beg beh ben bga bgb bgd bge bgg bgh bgn bha bhb bhd bhe bhg bhh bna bnb bnd bne bng bnn daa dab dad dae dag dah dan dba dbb dbd dbe dbg dbh dbn dda ddb ddd dde ddg ddh ddn de- dea deb ded dee deg deh den dga dgd dge dgg dgh dgn dh- dha dhb dhd dhe dhh dna dnb dnd dne dng dnh dnn eaa eab ead eae eag eah ean eba ebb ebd ebe ebg ebh ebn ed- eda edb edd ede edg edh edn eea eeb eed eee eeg een ega egb egd ege egg egh egn eha ehb ehd ehe ehg ehh ehn en- ena enb end ene eng enh enn g-d gaa gab gad gae gag gah gan gba gbd gbe gbg gbh gbn gda gdb gdd gde gdh gdn ge- gea geb ged gee geg geh gen gga ggb ggd ggg ggh ggn gha ghb ghd ghe ghg ghh ghn gna gnb gnd gne gnn haa hab had hae hag hah han hba hbb hbd hbe hbg hbh hbn hda hdb hdd hde hdg hdh hdn he- hea heb hed hee heg heh hen hga hgb hge hgg hgh hgn hha hhb hhd hhe hhg hhh hhn hna hnb hnd hne hng hnh hnn naa nab nad nae nag nah nan nba nbb nbd nbe nbg nbn nda ndb ndd nde ndg ndh ndn ne- nea neb ned nee neg neh nen nga ngb ngd nge ngg ngh ngn nha nhb nhd nhe nhg nhh nhn nna nnb nne nng nnh nnn