bbb bbd bbe bbg bbo bbs bdb bdd bde bdg bdo bds be- beb bed bee beg beo bes bgb bgd bge bgg bgo bgs bob bod boe bog boo bos bsb bsd bse bsg bso bss dbb dbd dbe dbg dbo dbs ddb ddd dde ddg ddo dds de- deb ded dee deg deo des dgd dge dgg dgs dob dod doe dog doo dos dsb dsd dse dsg dso dss ebb ebd ebe ebg ebo ebs ed- edb edd ede edg edo eds eeb eed eee eeg eeo ees egb egd ege egg ego egs eo- eob eod eoe eog eoo eos es- esb esd ese esg eso ess g-d gbd gbe gbg gbo gbs gdb gdd gde gdo gds ge- geb ged gee geg geo ges ggb ggd ggg ggo ggs gob god goe gog goo gos gsb gsd gse gsg gso gss ob- obb obd obe obg obo obs odb odd ode odg odo ods oeb oed oee oeg oeo oes ogd oge ogg ogo ogs oo- oob ood oog ooo oos os- osb osd ose osg oso oss sbb sbd sbe sbg sbo sbs sdb sdd sde sdg sdo sds se- seb sed see seg seo ses sgb sgd sge sgg sgo sgs sob sod soe sog soo sos ss- ssb ssd sse ssg sso sss