-ey b-u bbb bbc bbe bbk bbt bbu bby bcb bcc bce bck bct bcu bcy be- beb bec bee bek bet beu bey bkb bkc bke bkk bkt btb btc bte btk btt btu bty bub buc bue buk but buu buy by- byc bye byk byt byu c-- cbb cbc cbe cbk cbt cbu cby ccb ccc cce cck cct ccu ce- ceb cec cee cek cet ceu cey ckb ckc ckt cky ctb ctc cte ctk ctt ctu cty cub cuc cue cuk cut cuu cuy cyb cyc cye cyk cyt ebb ebc ebe ebk ebt ebu eby ec- ecb ecc ece eck ect ecu eeb eec eee eek eet eey ekb ekc eke ekt eku eky etb etc ete etk ett etu ety eu- eub euc eue eut eyc eye eyt k-t kbb kbc kbe kbk kbu kcb kcc kce kck kct kcu ke- keb kec kee kek ket key kkb kkc kke kkk kkt kku kky ktb ktc kte ktk ktt ktu kub kuc kue kuk kut kuu kuy kyc kye kyt kyu tbb tbc tbe tbk tbt tbu tcb tcc tce tck tct tcu te- teb tec tee tek tet teu tey tkb tkc tke tkk tkt tky ttb ttc tte ttk ttt ttu tty tub tuc tue tuk tut tuu tuy tyc tye tyt ubb ubc ube ubk ubt ubu uby ucb ucc uce uck uct ucu ueb uec uee uet uey ukb ukc uke ukk uku utb utc ute utk utt utu uty uuc uue uut uuu uyc uyu ybc ybe yby ycc yce ycu ycy yeb yec yee yek yet yey ykk ytc yte ytk ytt ytu yue yuk yut yuu yuy yyb yyc yye yyt yyu yyy