-ey -th bbb bbc bbe bbh bbo bbt bby bcb bcc bce bch bco bct bcy be- beb bec bee beh beo bet bey bhb bhc bhe bhh bho bht bob boc boe boh boo bot boy btb btc bte bth bto btt bty by- byc bye byh byo byt c-- cbb cbc cbe cbh cbo cbt cby ccb ccc cce cch cco cct ce- ceb cec cee ceh ceo cet cey ch- chb chc che chh cho cht chy co- cob coc coe coh coo cot coy ctb ctc cte cth cto ctt cty cyb cyc cye cyo cyt ebb ebc ebe ebh ebo ebt eby ec- ecb ecc ece ech eco ect eeb eec eee eeo eet eey ehb ehc ehe ehh eho eht eo- eob eoc eoe eoh eoo eot etb etc ete eth eto ett ety eyc eye eyo eyt hbb hbc hbe hbh hbo hbt hby hcb hcc hce hch hco hct hcy he- heb hec hee heh heo het hey hhb hhc hhe hhh hho hht hhy hob hoc hoe hoh hoo hot hoy htb htc hte hth hto htt hty hy- hyb hyc hye hyh hyo hyt hyy ob- obb obc obe obh obo obt oby oc- ocb occ och oco oct oeb oec oee oeh oeo oet oey ohc ohe ohh oho oht oo- oob ooc ooh ooo oot ot- otb otc ote oth oto ott oye oyo tbb tbc tbe tbh tbo tbt tcb tcc tce tch tco tct te- teb tec tee teh teo tet tey th- thb thc the thh tho tht thy to- tob toc toe toh too tot toy ttb ttc tte tth tto ttt tty tyc tye tyo tyt ybc ybe yby ycc yce ych yco ycy yeb yec yee yeh yeo yet yey yhc yhe yht yob yoc yoe yoo yot yoy ytc yte yth yto ytt yyb yyc yye yyt yyy