-th bbb bbc bbe bbh bbm bbo bbt bcb bcc bce bch bcm bco bct be- beb bec bee beh bem beo bet bhb bhc bhe bhh bhm bho bht bmb bmc bme bmh bmm bmo bmt bob boc boe boh bom boo bot btb btc bte bth btm bto btt c-- cbb cbc cbe cbh cbm cbo cbt ccb ccc cce cch ccm cco cct ce- ceb cec cee ceh cem ceo cet ch- chb chc che chh chm cho cht cmb cmc cme cmh cmm cmo cmt co- cob coc coe coh com coo cot ctb ctc cte cth ctm cto ctt ebb ebc ebe ebh ebm ebo ebt ec- ecb ecc ece ech ecm eco ect eeb eec eee eem eeo eet ehb ehc ehe ehh ehm eho eht em- emb emc eme emh emm emo emt eo- eob eoc eoe eoh eom eoo eot etb etc ete eth etm eto ett hbb hbc hbe hbh hbm hbo hbt hcb hcc hce hch hcm hco hct he- heb hec hee heh hem heo het hhb hhc hhe hhh hhm hho hht hmb hmc hme hmh hmm hmo hmt hob hoc hoe hoh hom hoo hot htb htc hte hth htm hto htt m-o mbb mbc mbe mbh mbm mbo mbt mc- mcb mcc mce mch mcm mco mct meb mec mee meh mem meo met mhc mhh mhm mho mht mmb mmc mme mmh mmm mmo mmt mob moc moe moh mom moo mot mtb mtc mte mth mtm mto mtt ob- obb obc obe obh obm obo obt oc- ocb occ och ocm oco oct oeb oec oee oeh oem oeo oet ohc ohe ohh ohm oho oht om- omb omc ome omh omm omo omt oo- oob ooc ooh oom ooo oot ot- otb otc ote oth otm oto ott tbb tbc tbe tbh tbm tbo tbt tcb tcc tce tch tcm tco tct te- teb tec tee teh tem teo tet th- thb thc the thh thm tho tht tmb tmc tme tmh tmm tmo tmt to- tob toc toe toh tom too tot ttb ttc tte tth ttm tto ttt