a-a a-b a-i aaa aab aad aae aag aai aao aav ab- aba abb abd abe abg abi abo abv ad- ada adb add ade adg adi ado adv aea aeb aed aee aeg aei aeo aev ag- aga agb agd age agg agi ago agv ai- aia aib aid aie aig aii aio aiv aoa aob aod aoe aog aoi aoo aov av- ava avb avd ave avg avi avo baa bab bad bae bag bai bao bav bba bbb bbd bbe bbg bbi bbo bda bdb bdd bde bdg bdi bdo bdv be- bea beb bed bee beg bei beo bev bga bgb bgd bge bgg bgi bgo bgv bi- bia bib bid bie big bii bio biv boa bob bod boe bog boi boo bov bva bvb bvd bve bvg bvi bvo bvv daa dab dad dae dag dai dao dav dba dbb dbd dbe dbg dbi dbo dbv dda ddb ddd dde ddg ddi ddo de- dea deb ded dee deg dei deo dev dga dgd dge dgg dgi di- dia dib did die dig dii dio div doa dob dod doe dog doi doo dov dva dvb dvd dve dvg dvi eaa eab ead eae eag eai eao eav eba ebb ebd ebe ebg ebi ebo ebv ed- eda edb edd ede edg edi edo eea eeb eed eee eeg eeo eev ega egb egd ege egg egi ego eia eib eid eie eig eii eio eiv eo- eoa eob eod eoe eog eoi eoo eva evb evd eve evg evi evo evv g-d gaa gab gad gae gag gai gao gav gba gbd gbe gbg gbi gbo gbv gda gdb gdd gde gdi gdo gdv ge- gea geb ged gee geg gei geo gev gga ggb ggd ggg ggi ggo ggv gia gib gid gie gig gii gio giv goa gob god goe gog goi goo gov gva gvb gvd gve gvg gvi gvo i-d i-v ia- iaa iab iad iae iag iai iao iav iba ibb ibd ibe ibg ibi ibo ibv ida idb idd ide idg idi ido idv ie- iea ied iee ieg iei iev iga igb igd ige igg igi igo iia iib iid iie iii iio io- ioa iob iod ioe iog ioi ioo iov iva ivb ivd ive ivg ivi ivo ivv o-i oaa oab oad oae oag oai oao oav ob- oba obb obd obe obg obi obo obv oda odb odd ode odg odi odo odv oea oeb oed oee oeg oei oeo oga ogd oge ogg ogi ogo oia oib oid oie oii oio oiv oo- ooa oob ood oog ooi ooo oov ov- ova ovb ovd ove ovi ovo ovv v-a v-e vaa vab vad vae vag vai vao vav vba vbd vbg vbi vbo vbv vdb vdd vde vdg vdi vdo vdv vea veb ved vee veg vei veo vga vgg vgo vi- via vib vid vie vig vii vio viv voa vob vod voe vog voi voo vov vva vvb vvg vvi vvo vvv