-ic bbb bbc bbi bbk bbn bbo bbr bcb bcc bci bck bcn bco bcr bi- bib bic bii bik bin bio bir bkb bkc bkk bkn bko bkr bnb bnc bni bnk bnn bno bnr bob boc boi bok bon boo bor brb bri brk brn bro brr c-- cbb cbc cbi cbk cbn cbo cbr ccb ccc cci cck ccn cco ccr ci- cib cic cii cik cin cio cir ckb ckc cki cko cn- cnb cnc cni cnn cno cnr co- cob coc coi cok con coo cor crb crc cri crk crn cro crr ibb ibc ibi ibk ibn ibo ibr icb icc ici ick icn ico icr iib iic iii iin iio iir ikb ikc iki ikk iko ikr in- inb inc ini ink inn ino inr io- iob ioc ioi ion ioo ior ir- irb irc iri irk irn iro irr kbb kbc kbi kbk kbn kbo kbr kcb kcc kci kck kcn kcr kib kic kii kik kin kio kir kkb kkc kki kkk kkn kkr kn- knc kni knk knn kno knr kob koc koi kok kon koo kor krc kri krk krn kro krr n-i nbb nbc nbi nbk nbn nbo nbr ncb ncc nci nck ncn nco ncr nib nic nii nik nin nio nir nkc nki nkk nkn nko nkr nnb nnc nni nnk nnn nno no- nob noc noi nok non noo nor nrb nrc nri nrk nrn nro nrr o-i ob- obb obc obi obk obn obo obr oc- ocb occ oci ock ocn oco ocr oib oic oii oik oin oio oir okb okc oki okk oko okr on- onb onc oni onk onn ono onr oo- oob ooc ooi ook oon ooo oor or- orb orc ori ork orn oro orr rbb rbc rbi rbk rbn rbo rbr rcb rcc rci rcn rco rcr rib ric rii rik rin rio rir rkb rkc rkk rko rnb rnc rni rnn rno rnr rob roc roi rok ron roo ror rrb rrc rri rrk rrn rrr

-nik bbbb bbci bbin bbrc bcbc bccc bcci bcor bibb bibi bibo bicc bici bick bico biin biko bin- binc bini bink binn bino bio- bioc bioi bion birb biri birk birn biro birr bnib bnin bnoc bnor bnrr bobb bobi bobo bock boco boi- boii boin boki bokn boko bonc boni bonk bonn bono boob booc book boon boor bor- bori bork born boro borr brcb bric brik brin brio brkb brno brob broc brok bron broo bror brrr c-bo cbbc cbcc cbcn cbcr cbir cbkn cbko cbkr cbrn ccbc ccbn cccb cccc ccci ccic ccii ccir ccnb ccnc ccni ccnr ccob ccoc ccrc ccri cibc cibi cibo cicc cici cico cicr ciii ciko cikr cin- cinc cini cink cino ciob cion cior cirb circ ciri cirk ciro cirr ckbc ckbi ckck ckco ckin cknb cknc ckob ckoc ckoi ckoo ckor ckrc cnbc cnci cnco cnib cnic cnki cnrc cnrr cobb cobi cobo cock coco coin coir cok- coko con- conc coni conk conn cono coob cook coon cor- corb corc cori cork corn coro corr crbc crcc crcr crib cric crik crin crkc crob croc crok cron croo cror i-no ibon ibrc ibri ibro icbc iccb iccc icci iccn icco iccr icnb icnc icoc icon icor icrc icrr iiii iiio iino iioi iioo iirc ikin ikki ikko ikon ikoo ikri inbo incb inci inco incr inki inni inno innr ino- inoi inon inor inri inro iobi ioci ioii ioio ioko ioni ionn iono iooi iooo iori ircc iri- iric irin irio irki irob iroc iron irrc irri k-ci kbbb kbbc kbbi kbbk kbbo kbbr kbcb kbci kbck kbco kbcr kbib kbic kbik kbio kbkb kbkk kbko kbkr kbnn kbno kbnr kbob kboc kboi kbok kbon kboo kbrb kbrc kbri kbrk kbrn kbro kcbc kcbi kcbk kcbr kccb kccc kcci kcck kccr kcic kcii kcin kcir kckc kckk kckn kcko kckr kcnb kcni kcno kcnr kcob kcon kcor kcrc kcri kcrn kcro kcrr kibb kibc kibi kibo kibr kicb kicc kick kicr kiic kiii kiik kikc kiki kikk kiko kikr kin- kinb kinc kini kink kinn kino kioc kioi kiok kion kioo kirb kirc kiri kirk kirn kiro kirr kkbb kkbi kkbn kkbo kkbr kkcb kkci kkck kkcn kkco kkcr kkic kkik kkin kkkk kknb kkni kknn kkno kkob kkon kkoo kkor kkrb kkrc kkrk kkrn kkro kkrr knbb knbc knbn knbr kncb knci knck kncn knco kncr knib knic knik knin knir knki knkk knnb knnk knnr knob knoc knok knon knor knrb knrk knro kobb kobc kobi kobk kobn kobo kobr kocb koci kock kocn koii koin koir kokb kokc koki kokk kokn koko kokr konc koni konk kono koob kooc kooi kook koon kooo koor korb korc kori kork korn koro korr krbb krbi krbk krbr krcb krcc krci krcn krco krib krik krin krio krkc krki krkk krkn krko krkr krnb krni krnk krnn krno krob kroc kroi krok kroo kror krrb krrc krri krrk krrn krro krrr n-ii nbbc nbbo nbcc nbci nbco nbic ncbc ncbi nccc ncci nccn nccr ncnc ncoc ncor ncrc ncri nibi nibo nicc nici nick nico niir nikc niki niko nini nino nion nioo niro nkio nkok nkor nnnn nobc nobi nobo noci nock noco noib noik noin noio noir noki noko non- noni nonn nono noo- noob nook noon nooo noor nor- norb norc nori nork norn noro norr nric nroc nron nrrc obbo obin obkb oboi obok obon obor obri obro ocbc occc occi occn ocin ocon ocro ocrr oici oick oiii oiko oink oion okic okir okko okni okno okok okon okor okro onc- onco onic onir onni onno onon onor oobi oocr oooo orbb orbi orbo orci orco ori- oric orin orio orko ornc orni orno oro- orok oron oror orri orro rbbb rbbr rcbc rcbo rccb rccc rcic rcnr rcon rib- ribo ricc rick rico riin riki rikk rink rinn rino rion riri rnbr rnco rnin rob- robb robi robo rocc rock roco roik roin