bbb bbc bbk bbn bbo bbx bcb bcc bck bcn bco bcx bkb bkc bkk bkn bko bkx bnb bnc bnk bnn bno bnx bob boc bok bon boo box bxb bxn bxo bxx c-- cbb cbc cbk cbn cbo cbx ccb ccc cck ccn cco ccx ckb ckc cko ckx cn- cnb cnc cnn cno cnx co- cob coc cok con coo cox cxc cxk cxo cxx kbb kbc kbk kbn kbo kbx kcb kcc kck kcn kcx kkb kkc kkk kkn kn- knc knk knn kno knx kob koc kok kon koo kxo nbb nbc nbk nbn nbo nbx ncb ncc nck ncn nco ncx nkc nkk nkn nko nnb nnc nnk nnn nno no- nob noc nok non noo nox nxc ob- obb obc obk obn obo obx oc- ocb occ ock ocn oco ocx okb okc okk oko on- onb onc onk onn ono onx oo- oob ooc ook oon ooo oox ox- oxb oxc oxn oxo oxx xbc xbx xcb xcx xkb xnc xnk xno xoc xok xon xoo xox xxo xxx

bbbb bbox bcbc bccc bnoc bobb bobo bock boco bokn boko bonc bonk bonn bono boob booc book boon boox c-bo cbbc cbcc cbcn cbkn cbko cbox ccbc ccbn cccb cccc ccnb ccnc ccob ccoc ckbc ckbx ckck ckco ckcx cknb cknc cknx ckob ckoc ckoo cnbc cnco cobb cobo cock coco cok- coko con- conc conk conn cono coob cook coon cxxx kbbb kbbc kbbk kbbo kbcb kbck kbco kbkb kbkk kbko kbnn kbno kbob kboc kbok kbon kboo kbox kbxb kbxx kc-x kcbc kcbk kcbx kccb kccc kcck kckc kckk kckn kcko kckx kcnb kcno kcob kcon kcox kkbb kkbn kkbo kkcb kkck kkcn kkco kkkk kknb kknn kkno kknx kkob kkon kkoo kkxk kkxx knbb knbc knbn kncb knck kncn knco knkk knnb knnk knob knoc knok knon knox knxx kobb kobc kobk kobn kobo kocb kock kocn kokb kokc kokk kokn koko kokx konc konk kono koob kooc kook koon kooo koxc kxbn kxbx kxkc kxkk kxkx kxnc kxno kxok kxon kxoo kxox kxxk kxxn kxxo kxxx nbbc nbbo nbcc nbco ncbc nccc nccn ncnc ncoc nkok nnnn nobc nobo nock noco noko non- nonn nono nonx noo- noob nook noon nooo obbo obkb obok obon obox ocbc occc occn ocon okko okno okok okon onc- onco onno onon oooo oxo- oxon oxox oxxo xbox xcon xobc xoco xoxo xxxo xxxx

bbook bcock bo-bo bobko boboc bobok bocon bokko bokok bonon bonox boock booco booko boonk ccccc cnnnn co-bo co-co cocc- cocco cockx cocon cokk- conck conco cono- conob conon coxon k-box kkbox knock knokk ko-ko kocon kokko konno nnooo no-no nobob nobox nokko nokon nonno noxon o-bon obock okobo okoc onco- onnbc onoon ooooo x-box xonox xoxox

bbbbbb boccob bocock bocono bonbon bonobo booboo cobbob cocco- cococo cocoon concon connon conoco coocoo cookoo coxcox knock- koboko kokoon koobox kookoo koxbox nkonko non-no noncon nonkon nonono nonoon noonoo o-knon onbook onobox oooooo xoxoxo

bbbbbbb bok-bok bokonon bon-bon boo-boo boobook boocock bookbox bookcon connock coonbox knockon kokocko non-con nonbook noncook obox-ob oxoboxo xxxxxxx

bbbbbbbb bo-bo-bo boconnoc bonobono bookboon coboconk cookbook knock-on no-knock nokonoko nononono xoxoxoxo

bonnbonbon bonobonono knockknock

knock-knock

bonbonbooboo xxxxxxxxxxxx

bbbbbbbbbbbbbbb ccccccccccccccc