a-a a-b a-i a-z aaa aab aad aae aag aai aao aaz ab- aba abb abd abe abg abi abo abz ad- ada adb add ade adg adi ado adz aea aeb aed aee aeg aei aeo aez ag- aga agb agd age agg agi ago agz ai- aia aib aid aie aig aii aio aiz aoa aob aod aoe aog aoi aoo az- aza azb azd aze azg azi azo azz baa bab bad bae bag bai bao baz bba bbb bbd bbe bbg bbi bbo bda bdb bdd bde bdg bdi bdo bdz be- bea beb bed bee beg bei beo bez bga bgb bgd bge bgg bgi bgo bgz bi- bia bib bid bie big bii bio biz boa bob bod boe bog boi boo boz bza bzd bze bzo bzz daa dab dad dae dag dai dao daz dba dbb dbd dbe dbg dbi dbo dbz dda ddb ddd dde ddg ddi ddo ddz de- dea deb ded dee deg dei deo dez dga dgd dge dgg dgi dgz di- dia dib did die dig dii dio diz doa dob dod doe dog doi doo doz dza dzb dzd dze dzi dzo eaa eab ead eae eag eai eao eaz eba ebb ebd ebe ebg ebi ebo ed- eda edb edd ede edg edi edo eea eeb eed eee eeg eeo ega egb egd ege egg egi ego eia eib eid eie eig eii eio eo- eoa eob eod eoe eog eoi eoo eze ezo ezz g-d gaa gab gad gae gag gai gao gaz gba gbd gbe gbg gbi gbo gbz gda gdb gdd gde gdi gdo ge- gea geb ged gee geg gei geo gez gga ggb ggd ggg ggi ggo ggz gia gib gid gie gig gii gio giz goa gob god goe gog goi goo goz gza gzo i-d ia- iaa iab iad iae iag iai iao iaz iba ibb ibd ibe ibg ibi ibo ibz ida idb idd ide idg idi ido ie- iea ied iee ieg iei iga igb igd ige igg igi igo iia iib iid iie iii iio io- ioa iob iod ioe iog ioi ioo iza ize izi izo izz o-i oaa oab oad oae oag oai oao ob- oba obb obd obe obg obi obo oda odb odd ode odg odi odo oea oeb oed oee oeg oei oeo oga ogd oge ogg ogi ogo oia oib oid oie oii oio oiz oo- ooa oob ood oog ooi ooo oza oze ozo ozz z-g zaa zab zad zag zai zao zaz zbb zea zeb zed zee zeo zez zgb zgg zgi zia zib zid zie zig zio ziz zo- zoa zob zod zoe zog zoi zoo zzz