-ey b-p bbb bbc bbe bbm bbo bbp bby bcb bcc bce bcm bco bcp bcy be- beb bec bee bem beo bep bey bmb bmc bme bmm bmo bmp bob boc boe bom boo bop boy bpb bpc bpe bpm bpo bpp bpy by- byc bye bym byo byp c-- cbb cbc cbe cbm cbo cbp cby ccb ccc cce ccm cco ccp ce- ceb cec cee cem ceo cep cey cmb cmc cme cmm cmo cmp cmy co- cob coc coe com coo cop coy cpb cpc cpe cpm cpo cpp cyb cyc cye cym cyo cyp ebb ebc ebe ebm ebo ebp eby ec- ecb ecc ece ecm eco eeb eec eee eem eeo eep eey em- emb emc eme emm emo emp eo- eob eoc eoe eom eoo eop ep- epb epc epe epm epo epp eyc eye eym eyo eyp m-o mbb mbc mbe mbm mbo mbp mc- mcb mcc mce mcm mco mcp meb mec mee mem meo mep mey mmb mmc mme mmm mmo mmp mob moc moe mom moo mop moy mpb mpc mpe mpm mpo mpp my- myb myc mye mym myo ob- obb obc obe obm obo obp oby oc- ocb occ ocm oco ocp oeb oec oee oem oeo oep oey om- omb omc ome omm omo omp omy oo- oob ooc oom ooo oop op- opb opc ope opm opo opp opy oye oyo p-p pbb pbc pbe pbm pbo pbp pby pcb pcc pce pcm pco pcp peb pec pee pem peo pep pey pmb pmc pme pmm pmo pmp pob poc poe pom poo pop poy ppb ppc ppe ppm ppo ppp py- pyb pyc pye pym pyo ybc ybe ybm ybp yby ycc yce yco ycp ycy yeb yec yee yem yeo yep yey ymc yme ymm ymo yob yoc yoe yom yoo yop yoy ypo yyb yyc yye yyy