bbb bbc bbe bbh bbm bbo bcb bcc bce bch bcm bco be- beb bec bee beh bem beo bhb bhc bhe bhh bhm bho bmb bmc bme bmh bmm bmo bob boc boe boh bom boo c-- cbb cbc cbe cbh cbm cbo ccb ccc cce cch ccm cco ce- ceb cec cee ceh cem ceo ch- chb chc che chh chm cho cmb cmc cme cmh cmm cmo co- cob coc coe coh com coo ebb ebc ebe ebh ebm ebo ec- ecb ecc ece ech ecm eco eeb eec eee eem eeo ehb ehc ehe ehh ehm eho em- emb emc eme emh emm emo eo- eob eoc eoe eoh eom eoo hbb hbc hbe hbh hbm hbo hcb hcc hce hch hcm hco he- heb hec hee heh hem heo hhb hhc hhe hhh hhm hho hmb hmc hme hmh hmm hmo hob hoc hoe hoh hom hoo m-o mbb mbc mbe mbh mbm mbo mc- mcb mcc mce mch mcm mco meb mec mee meh mem meo mhc mhh mhm mho mmb mmc mme mmh mmm mmo mob moc moe moh mom moo ob- obb obc obe obh obm obo oc- ocb occ och ocm oco oeb oec oee oeh oem oeo ohc ohe ohh ohm oho om- omb omc ome omh omm omo oo- oob ooc ooh oom ooo