-al a-a a-b a-i aaa aab aad aae aag aai aal aan ab- aba abb abd abe abg abi abl abn ad- ada adb add ade adg adi adl adn aea aeb aed aee aeg aei ael aen ag- aga agb agd age agg agi agl agn ai- aia aib aid aie aig aii ail ain al- ala alb ald ale alg ali all aln an- ana anb and ane ang ani anl ann baa bab bad bae bag bai bal ban bba bbb bbd bbe bbg bbi bbl bbn bda bdb bdd bde bdg bdi bdl be- bea beb bed bee beg bei bel ben bga bgb bgd bge bgg bgi bgl bgn bi- bia bib bid bie big bii bil bin bla blb bld ble blg bli bll bln bna bnb bnd bne bng bni bnl bnn daa dab dad dae dag dai dal dan dba dbb dbd dbe dbg dbi dbl dbn dda ddb ddd dde ddg ddi ddl ddn de- dea deb ded dee deg dei del den dga dgd dge dgg dgi dgl dgn di- dia dib did die dig dii dil din dl- dla dlb dld dle dlg dli dll dna dnb dnd dne dng dni dnl dnn eaa eab ead eae eag eai eal ean eba ebb ebd ebe ebg ebi ebl ebn ed- eda edb edd ede edg edi edl edn eea eeb eed eee eeg eel een ega egb egd ege egg egi egl egn eia eib eid eie eig eii eil ein ela elb eld ele elg eli ell eln en- ena enb end ene eng eni enl enn g-d gaa gab gad gae gag gai gal gan gba gbd gbe gbg gbi gbl gbn gda gdb gdd gde gdi gdl gdn ge- gea geb ged gee geg gei gel gen gga ggb ggd ggg ggi ggn gia gib gid gie gig gii gil gin gla glb gld gle glg gli gll gln gna gnb gnd gne gni gnl gnn i-d ia- iaa iab iad iae iag iai ial ian iba ibb ibd ibe ibg ibi ibl ibn ida idb idd ide idg idi idl idn ie- iea ied iee ieg iei iel ien iga igb igd ige igg igi igl ign iia iib iid iie iii iil iin il- ila ilb ild ile ilg ili ill iln in- ina inb ind ine ing ini inl inn la- laa lab lad lae lag lai lal lan lba lbb lbd lbe lbg lbi lbl lda ldb ldd lde ldg ldi ldl ldn lea leb led lee leg lei lel len lga lgb lgd lge lgg lgi lgl lgn lia lib lid lie lig lii lil lin lla llb lld lle llg lli lll lln lna lnb lnd lne lng lni lnl lnn n-i naa nab nad nae nag nai nal nan nba nbb nbd nbe nbg nbi nbl nbn nda ndb ndd nde ndg ndi ndl ndn ne- nea neb ned nee neg nei nel nen nga ngb ngd nge ngg ngi ngl ngn nia nib nid nie nig nii nil nin nla nlb nld nle nlg nli nll nln nna nnb nne nng nni nnl nnn