bbb bbd bbe bbg bbi bbo bdb bdd bde bdg bdi bdo be- beb bed bee beg bei beo bgb bgd bge bgg bgi bgo bi- bib bid bie big bii bio bob bod boe bog boi boo dbb dbd dbe dbg dbi dbo ddb ddd dde ddg ddi ddo de- deb ded dee deg dei deo dgd dge dgg dgi di- dib did die dig dii dio dob dod doe dog doi doo ebb ebd ebe ebg ebi ebo ed- edb edd ede edg edi edo eeb eed eee eeg eeo egb egd ege egg egi ego eib eid eie eig eii eio eo- eob eod eoe eog eoi eoo g-d gbd gbe gbg gbi gbo gdb gdd gde gdi gdo ge- geb ged gee geg gei geo ggb ggd ggg ggi ggo gib gid gie gig gii gio gob god goe gog goi goo i-d ibb ibd ibe ibg ibi ibo idb idd ide idg idi ido ie- ied iee ieg iei igb igd ige igg igi igo iib iid iie iii iio io- iob iod ioe iog ioi ioo o-i ob- obb obd obe obg obi obo odb odd ode odg odi odo oeb oed oee oeg oei oeo ogd oge ogg ogi ogo oib oid oie oii oio oo- oob ood oog ooi ooo