-ey b-u bbb bbc bbe bbo bbt bbu bby bcb bcc bce bco bct bcu bcy be- beb bec bee beo bet beu bey bob boc boe boo bot bou boy btb btc bte bto btt btu bty bub buc bue buo but buu buy by- byc bye byo byt byu c-- cbb cbc cbe cbo cbt cbu cby ccb ccc cce cco cct ccu ce- ceb cec cee ceo cet ceu cey co- cob coc coe coo cot cou coy ctb ctc cte cto ctt ctu cty cub cuc cue cuo cut cuu cuy cyb cyc cye cyo cyt ebb ebc ebe ebo ebt ebu eby ec- ecb ecc ece eco ect ecu eeb eec eee eeo eet eey eo- eob eoc eoe eoo eot eou etb etc ete eto ett etu ety eu- eub euc eue eut eyc eye eyo eyt ob- obb obc obe obo obt obu oby oc- ocb occ oco oct ocu oeb oec oee oeo oet oey oo- oob ooc ooo oot ot- otb otc ote oto ott otu ou- ouc oue ouo out oye oyo tbb tbc tbe tbo tbt tbu tcb tcc tce tco tct tcu te- teb tec tee teo tet teu tey to- tob toc toe too tot tou toy ttb ttc tte tto ttt ttu tty tub tuc tue tuo tut tuu tuy tyc tye tyo tyt ubb ubc ube ubo ubt ubu uby ucb ucc uce uco uct ucu ueb uec uee uet uey uob uoc uoe uoo uot utb utc ute uto utt utu uty uuc uue uut uuu uyc uyo uyu ybc ybe yby ycc yce yco ycu ycy yeb yec yee yeo yet yey yob yoc yoe yoo yot you yoy ytc yte yto ytt ytu yue yuo yut yuu yuy yyb yyc yye yyt yyu yyy