bbb bbd bbe bbg bbo bbt bdb bdd bde bdg bdo bdt be- beb bed bee beg beo bet bgb bgd bge bgg bgo bgt bob bod boe bog boo bot btb btd bte btg bto btt dbb dbd dbe dbg dbo dbt ddb ddd dde ddg ddo ddt de- deb ded dee deg deo det dgd dge dgg dgt dob dod doe dog doo dot dtb dtd dte dtg dto dtt ebb ebd ebe ebg ebo ebt ed- edb edd ede edg edo edt eeb eed eee eeg eeo eet egb egd ege egg ego egt eo- eob eod eoe eog eoo eot etb etd ete etg eto ett g-d gbd gbe gbg gbo gbt gdb gdd gde gdo gdt ge- geb ged gee geg geo get ggb ggd ggg ggo ggt gob god goe gog goo got gtb gtd gte gtg gto gtt ob- obb obd obe obg obo obt odb odd ode odg odo odt oeb oed oee oeg oeo oet ogd oge ogg ogo ogt oo- oob ood oog ooo oot ot- otb otd ote otg oto ott tbb tbd tbe tbg tbo tbt tdb tdd tde tdg tdo tdt te- teb ted tee teg teo tet tgb tge tgg tgo tgt to- tob tod toe tog too tot ttb ttd tte ttg tto ttt