bbb bbe bbg bbm bbo bbt be- beb bee beg bem beo bet bgb bge bgg bgm bgo bgt bmb bme bmg bmm bmo bmt bob boe bog bom boo bot btb bte btg btm bto btt ebb ebe ebg ebm ebo ebt eeb eee eeg eem eeo eet egb ege egg egm ego egt em- emb eme emg emm emo emt eo- eob eoe eog eom eoo eot etb ete etg etm eto ett gbe gbg gbm gbo gbt ge- geb gee geg gem geo get ggb ggg ggm ggo ggt gmb gme gmg gmm gmo gmt gob goe gog gom goo got gtb gte gtg gtm gto gtt m-o mbb mbe mbg mbm mbo mbt meb mee meg mem meo met mgb mge mgm mgo mgt mmb mme mmg mmm mmo mmt mob moe mog mom moo mot mtb mte mtg mtm mto mtt ob- obb obe obg obm obo obt oeb oee oeg oem oeo oet oge ogg ogo ogt om- omb ome omg omm omo omt oo- oob oog oom ooo oot ot- otb ote otg otm oto ott tbb tbe tbg tbm tbo tbt te- teb tee teg tem teo tet tgb tge tgg tgm tgo tgt tmb tme tmg tmm tmo tmt to- tob toe tog tom too tot ttb tte ttg ttm tto ttt