-al a-a a-b a-i aaa aab aad aae aag aai aal ab- aba abb abd abe abg abi abl ad- ada adb add ade adg adi adl aea aeb aed aee aeg aei ael ag- aga agb agd age agg agi agl ai- aia aib aid aie aig aii ail al- ala alb ald ale alg ali all baa bab bad bae bag bai bal bba bbb bbd bbe bbg bbi bbl bda bdb bdd bde bdg bdi bdl be- bea beb bed bee beg bei bel bga bgb bgd bge bgg bgi bgl bi- bia bib bid bie big bii bil bla blb bld ble blg bli bll daa dab dad dae dag dai dal dba dbb dbd dbe dbg dbi dbl dda ddb ddd dde ddg ddi ddl de- dea deb ded dee deg dei del dga dgd dge dgg dgi dgl di- dia dib did die dig dii dil dl- dla dlb dld dle dlg dli dll eaa eab ead eae eag eai eal eba ebb ebd ebe ebg ebi ebl ed- eda edb edd ede edg edi edl eea eeb eed eee eeg eel ega egb egd ege egg egi egl eia eib eid eie eig eii eil ela elb eld ele elg eli ell g-d gaa gab gad gae gag gai gal gba gbd gbe gbg gbi gbl gda gdb gdd gde gdi gdl ge- gea geb ged gee geg gei gel gga ggb ggd ggg ggi gia gib gid gie gig gii gil gla glb gld gle glg gli gll i-d ia- iaa iab iad iae iag iai ial iba ibb ibd ibe ibg ibi ibl ida idb idd ide idg idi idl ie- iea ied iee ieg iei iel iga igb igd ige igg igi igl iia iib iid iie iii iil il- ila ilb ild ile ilg ili ill la- laa lab lad lae lag lai lal lba lbb lbd lbe lbg lbi lbl lda ldb ldd lde ldg ldi ldl lea leb led lee leg lei lel lga lgb lgd lge lgg lgi lgl lia lib lid lie lig lii lil lla llb lld lle llg lli lll