a-a a-b a-i aaa aab aad aae aag aai aao aau ab- aba abb abd abe abg abi abo abu ad- ada adb add ade adg adi ado adu aea aeb aed aee aeg aei aeo aeu ag- aga agb agd age agg agi ago agu ai- aia aib aid aie aig aii aio aiu aoa aob aod aoe aog aoi aoo aou au- aua aub aud aue aug aui auo b-u baa bab bad bae bag bai bao bau bba bbb bbd bbe bbg bbi bbo bbu bda bdb bdd bde bdg bdi bdo bdu be- bea beb bed bee beg bei beo beu bga bgb bgd bge bgg bgi bgo bgu bi- bia bib bid bie big bii bio biu boa bob bod boe bog boi boo bou bua bub bud bue bug bui buo buu daa dab dad dae dag dai dao dau dba dbb dbd dbe dbg dbi dbo dbu dda ddb ddd dde ddg ddi ddo ddu de- dea deb ded dee deg dei deo deu dga dgd dge dgg dgi dgu di- dia dib did die dig dii dio diu doa dob dod doe dog doi doo dou dua dub dud due dug dui duo eaa eab ead eae eag eai eao eau eba ebb ebd ebe ebg ebi ebo ebu ed- eda edb edd ede edg edi edo edu eea eeb eed eee eeg eeo ega egb egd ege egg egi ego egu eia eib eid eie eig eii eio eiu eo- eoa eob eod eoe eog eoi eoo eou eu- eua eub eud eue eug eui g-d gaa gab gad gae gag gai gao gau gba gbd gbe gbg gbi gbo gbu gda gdb gdd gde gdi gdo gdu ge- gea geb ged gee geg gei geo geu gga ggb ggd ggg ggi ggo ggu gia gib gid gie gig gii gio giu goa gob god goe gog goi goo gou gu- gua gub gud gue gug gui guo guu i-d ia- iaa iab iad iae iag iai iao iau iba ibb ibd ibe ibg ibi ibo ibu ida idb idd ide idg idi ido idu ie- iea ied iee ieg iei iga igb igd ige igg igi igo igu iia iib iid iie iii iio iiu io- ioa iob iod ioe iog ioi ioo iou iu- iua iub iud iue iug iui o-i oaa oab oad oae oag oai oao oau ob- oba obb obd obe obg obi obo obu oda odb odd ode odg odi odo odu oea oeb oed oee oeg oei oeo oga ogd oge ogg ogi ogo oia oib oid oie oii oio oiu oo- ooa oob ood oog ooi ooo ou- oua oud oue oui ouo ua- uaa uab uad uae uag uai uao uau uba ubb ube ubg ubi ubo ubu uda udb udd ude udg udi udo udu uea ueb ued uee ueg uei uga ugb uge ugg ugi ugo ugu uia uib uid uie uig uii uio uiu uoa uob uod uoe uog uoo uua uue uug uuu