-er bbb bbc bbe bbk bbr bcb bcc bce bck bcr be- beb bec bee bek ber bkb bkc bke bkk bkr brb bre brk brr c-- cbb cbc cbe cbk cbr ccb ccc cce cck ccr ce- ceb cec cee cek cer ckb ckc crb crc cre crk crr ebb ebc ebe ebk ebr ec- ecb ecc ece eck ecr eeb eec eee eek eer ekb ekc eke ekr erb erc ere erk err kbb kbc kbe kbk kbr kcb kcc kce kck kcr ke- keb kec kee kek ker kkb kkc kke kkk kkr krc krk krr rbb rbc rbe rbk rbr rcb rcc rce rcr re- reb rec ree rek rer rkb rkc rke rkk rrb rrc rrk rrr

bbbb bbeb bbrc bcbc bccc bcec bcer bebb bebe beck beeb beek beer beke berc bere berk berr brcb brce breb brec bree brek brer brkb brrr cbbc cbcc cbce cbcr cbec cbee cber cbkr cbre ccbc cccb cccc ccee ccrc ccre cec- cece ceeb ceec ceke cer- cerc cere ckbc ckbe ckck cker ckrc crbc crcc crce crcr cre- creb crec cree crkc ebbc ebbr ebcc eber ecbc ecbe eccb eccc ecce ecrc ecrr eeee eeke eerc ekeb ekek eker erbb erbe ercc erce ereb erec erer erke errc erre kbbb kbbc kbbe kbbk kbbr kbcb kbce kbck kbcr kbeb kbec kbee kbek kber kbkb kbkk kbkr kbrb kbrc kbre kbrk kcbc kcbk kcbr kccb kccc kcck kccr kceb kcec kcee kckc kckk kckr kcrc kcrr kebb kebc kebe kebr keck kecr keek keer kekb kekc keke ker- kerb kerc kere kerk kerr kkbb kkbe kkbr kkcb kkck kkcr kkkk kkrb kkrc kkre kkrk kkrr krbb krbe krbk krbr krcb krcc krce kreb krec kree krek krkc krke krkk krkr krrb krrc krre krrk krrr rbbb rbbr rcbc rccb rccc rebb rebe rebk recc rece reck recr reeb reek reke rere rrrr

b-r-k bbbee be-er bebek beber becke beebe beeke beker bekke berbe berck berec berek berk- berke berre brece breek breer breke brere brrrr ccccc cebec ceber ceere cerc- cerce cerec cerer cerke cerre crebe crece creek creer creke ebber ecker eecke eeeee ekker erbbe erber erere erkec kebbe kebek keber kecer keere kekec kerek kerre kreek kreke rebbe rebec reber recce recke reece reere rekke rere- reree

bbbbbb becker beebee beeker bekker berbee berber bercke bereke berere berker berrer breere brekke ceecee creeke eebree erbree kebber keeker kerber kerker kreker rebbec rebeck reeker

bbbbbbb berbere bkerke brekker cerbere cerebr- eerbeek kee-kee krebeck kreeker

bbbbbbbb berebere cekerek

beckerek beebeebee keek-keek

bbbbbbbbbbbbbbb ccccccccccccccc