-ol bbb bbc bbd bbk bbl bbo bbr bcb bcc bcd bck bcl bco bcr bcz bdb bdc bdd bdk bdl bdo bdr bdz bkb bkc bkk bkl bko bkr blb blc bld blk bll blo blr blz bob boc bod bok bol boo bor boz brb brd brk brl bro brr brz bzd bzo bzr bzz c-- cbb cbc cbd cbk cbl cbo cbr cbz ccb ccc ccd cck ccl cco ccr ccz cdb cdc cdd cdk cdl cdo cdr cdz ckb ckc ckd cko cl- clb clc cld clk cll clo clr clz co- cob coc cod cok col coo cor coz crb crc crd crk crl cro crr crz cz- czc czd czk czo dbb dbc dbd dbk dbl dbo dbr dbz dcb dcc dcd dck dcl dco dcr ddb ddc ddd ddk ddl ddo ddr ddz dkb dkc dkk dkl dko dkr dl- dlb dlc dld dlk dll dlo dlr dob doc dod dok dol doo dor doz drb drc drd drk drl dro drr drz dzb dzd dzo dzr k-z kbb kbc kbd kbk kbl kbo kbr kbz kcb kcc kcd kck kcl kcr kdb kdc kdk kdl kdo kdr kkb kkc kkk kkl kkr kl- klb klc kld klo klr klz kob koc kod kok kol koo kor koz krc krd krk krl kro krr kzo lbb lbc lbd lbk lbl lbo lbr lcb lcc lcd lck lcl lco lcr ldb ldc ldd ldk ldl ldo ldr lkb lkl lkr llb llc lld llk lll llo llr llz lob loc lod lok lol loo lor loz lrb lrc lrd lrk lro lrr lrz lzo lzr ob- obb obc obd obk obl obo obr oc- ocb occ ocd ock ocl oco ocr ocz odb odc odd odl odo odr okb okc okd okk okl oko okr olb olc old olk oll olo oo- oob ooc ood ook ool ooo oor or- orb orc ord ork orl oro orr orz ozo ozz rbb rbc rbd rbk rbl rbo rbr rcb rcc rcd rcl rco rcr rdb rdc rdd rdl rdo rdr rkb rkc rkk rko rkz rlc rld rll rlo rlr rob roc rod rok rol roo ror roz rrb rrc rrd rrk rrl rrr rzb rzo zbb zbc zbl zbr zcl zco zlr zo- zob zoc zod zok zol zoo zor zrl zro zzr zzz

bbbb bbdd bbdo bblb bbrc bcbc bccc bccl bcor bcoz bd-r bdbc bddc bldc bldr blkb blkd blob bloc blod blok bloo blrc bobb bobo bock boco bodb bodo boko bold bolk boll bolo boob booc bood book bool boor booz bor- bord bork boro borr borz bozo brcb brdo brkb brob broc brod brok brol broo bror broz brrr bzrk bzzz c-bo c-cd cbbc cbcc cbcl cbcr cbdb cbdc cbdo cbkl cbko cbkr cblb cblc cbol cbrd cbrl ccbc cccb cccc cccl ccdc ccdr cclc ccob ccoc ccod ccrc ccrl cd-r cddb cddl cddr ckbc ckck ckcl ckco ckdo ckob ckoc ckoo ckor ckrc ckrd clcd cldc cldr clob clod clok cloo clor cloz clrd clro cobb cobo cock coco codd codl cok- coko col- colb cold colk coll colo coob cood cook cool cor- corb corc cord cork corl coro corr cozd cozz crbc crcc crcr crcz crdc crkc crkl crob croc crod crok crol croo cror croz d-bo dbcc dcbc dccb dccc dccl dcdb dcrk dddd ddlc ddoc ddrc dkdc dlbd dlco dobb dobl dock doco dod- dodd dodo doko dold dolk doll dolo dolz doob dood dook dool door dorc dord dork doro dorr dozo drbc drob drod drol droz dzbb dzlb dzlr dzok dzor dzrl dzrr k-lo kbbb kbbc kbbd kbbk kbbl kbbo kbbr kbbz kbcb kbck kbcl kbco kbcr kbcz kbdb kbdl kbdo kbdr kbdz kbkb kbkk kbkl kbko kbkr kbkz kblb kbld kbll kblo kblr kblz kbob kboc kbod kbok kboo kboz kbrb kbrc kbrd kbrk kbrl kbro kbrz kbzc kbzd kbzo kbzz kcbc kcbd kcbk kcbl kcbr kccb kccc kccd kcck kccl kccr kcdc kcdd kcdr kcdz kckc kckk kckl kcko kckr kckz kclc kclk kcll kclr kclz kcob kcol kcor kcoz kcrc kcro kcrr kcrz kczo kczz kdbb kdbl kdbr kdcc kdcd kdco kdcr kddb kddc kddd kddk kddl kddr kdkb kdkd kdkk kdko kdkr kdlb kdlc kdld kdll kdlo kdlr kdoc kdok kdrb kdrl kdro kdzr kdzz kkbb kkbd kkbl kkbo kkbr kkbz kkcb kkcd kkck kkcl kkco kkcr kkdc kkdd kkdl kkdo kkdz kkkk kklb kklc kkld kkll kklo kklz kkob kkol kkoo kkor kkoz kkrb kkrc kkrk kkrl kkro kkrr kkrz kkzz klbb klbc klbd klbl klcb klcc klcd klck klcl klcr klcz kldc kldd kldr kldz klkc klkk klkl klko klkr kllb kllc kllk klob kloc klok klol kloo klor kloz klrc klrd klrk klrr klrz klzk klzr klzz kobb kobc kobk kobo kobr kocb kocd kock kodk kodl kodo kodz kokb kokc kokk koko kokr kokz kolb kolc kold kolk koll kolo kolr kolz koob kooc kook kool kooo koor kooz korb korc kord kork korl koro korr kozb kozk kozo kozr krbb krbd krbk krbl krbr krbz krcb krcc krcd krcl krco krdc krdd krdo krdr krdz krkc krkd krkk krko krkr krkz krlc krld krob kroc krod krok krol kroo kror kroz krrb krrc krrk krrl krro krrr krrz krzk krzr krzz kzbb kzbd kzbk kzbl kzbr kzbz kzcd kzcl kzcr kzdc kzdr kzkr kzkz kzlb kzlk kzlz kzoo kzor kzoz kzrb kzrc kzrd kzrk kzro kzrr kzrz kzzb kzzd kzzk kzzo kzzr kzzz lbcc lblr lboz lcbc lccc lcdd lcdr lcor lcrd lcrl llcc lldb lldc lllc llll lloc llod lloo lob- lobb lobo locc lock loco lodz lokk loko lold loll lolo lolz loob looc lood look lool loor looz lord lork loro lrdd lroc lrrc lrrr obbo obkb obok obol obor obro ocbc occc oclc ocrl ocro ocrr odbo oddd odoo odor odrl okko oklo okok okol okor okro olbo olcc oldb ollo olor oocr oold oolo oooo oord orbb orbo orco ordo orko orlo oro- orok oror oroz orro orzk