-ic bbb bbc bbd bbi bbk bbn bbo bbr bcb bcc bcd bci bck bcn bco bcr bdb bdc bdd bdi bdk bdo bdr bi- bib bic bid bii bik bin bio bir bkb bkc bkk bkn bko bkr bnb bnc bnd bni bnk bnn bno bnr bob boc bod boi bok bon boo bor brb brd bri brk brn bro brr c-- cbb cbc cbd cbi cbk cbn cbo cbr ccb ccc ccd cci cck ccn cco ccr cdb cdc cdd cdi cdk cdn cdo cdr ci- cib cic cid cii cik cin cio cir ckb ckc ckd cki cko cn- cnb cnc cnd cni cnn cno cnr co- cob coc cod coi cok con coo cor crb crc crd cri crk crn cro crr dbb dbc dbd dbi dbk dbn dbo dbr dcb dcc dcd dci dck dcn dco dcr ddb ddc ddd ddi ddk ddn ddo ddr di- dib dic did dii dik din dio dir dkb dkc dki dkk dko dkr dnb dnc dnd dni dnk dnn dno dnr dob doc dod doi dok don doo dor drb drc drd dri drk drn dro drr i-d ibb ibc ibd ibi ibk ibn ibo ibr icb icc icd ici ick icn ico icr idb idc idd idi idk idn ido idr iib iic iid iii iin iio iir ikb ikc iki ikk iko ikr in- inb inc ind ini ink inn ino inr io- iob ioc iod ioi ion ioo ior ir- irb irc ird iri irk irn iro irr kbb kbc kbd kbi kbk kbn kbo kbr kcb kcc kcd kci kck kcn kcr kdb kdc kdk kdo kdr kib kic kid kii kik kin kio kir kkb kkc kki kkk kkn kkr kn- knc knd kni knk knn kno knr kob koc kod koi kok kon koo kor krc krd kri krk krn kro krr n-i nbb nbc nbd nbi nbk nbn nbo nbr ncb ncc ncd nci nck ncn nco ncr ndb ndc ndd ndi ndk ndn ndo ndr nib nic nid nii nik nin nio nir nkc nki nkk nkn nko nkr nnb nnc nni nnk nnn nno no- nob noc nod noi nok non noo nor nrb nrc nrd nri nrk nrn nro nrr o-i ob- obb obc obd obi obk obn obo obr oc- ocb occ ocd oci ock ocn oco ocr odb odc odd odi odn odo odr oib oic oid oii oik oin oio oir okb okc okd oki okk oko okr on- onb onc ond oni onk onn ono onr oo- oob ooc ood ooi ook oon ooo oor or- orb orc ord ori ork orn oro orr rbb rbc rbd rbi rbk rbn rbo rbr rcb rcc rcd rci rcn rco rcr rdb rdc rdd rdi rdn rdo rdr rib ric rid rii rik rin rio rir rkb rkc rkk rko rnb rnc rnd rni rnn rno rnr rob roc rod roi rok ron roo ror rrb rrc rrd rri rrk rrn rrr

-nik bbbb bbci bbdd bbdo bbin bbrc bcbc bccc bcci bcor bd-r bdbc bddc bdii bdin bibb bibi bibo bicc bici bick bico bidi bido bidr biin biko bin- binc bind bini bink binn bino bio- bioc bioi bion birb bird biri birk birn biro birr bnib bnin bnoc bnor bnrr bobb bobi bobo bock boco bodb bodi bodo boi- boid boii boin boki bokn boko bonc bond boni bonk bonn bono boob booc bood book boon boor bor- bord bori bork born boro borr brcb brdo bric brid brik brin brio brkb brno brob broc brod brok bron broo bror brrr c-bo c-cd cbbc cbcc cbcn cbcr cbdb cbdc cbdi cbdn cbdo cbid cbir cbkn cbko cbkr cbnd cbrd cbrn ccbc ccbn cccb cccc ccci ccdc ccdi ccdn ccdr ccic ccid ccii ccir ccnb ccnc ccni ccnr ccob ccoc ccod ccrc ccri cd-r cddb cddr cdic cdii cdio cdnb cdnc cdon cibc cibi cibo cicc cici cico cicr cidc cidi cidr ciid ciii ciko cikr cin- cinc cind cini cink cino ciob cion cior cirb circ ciri cirk ciro cirr ckbc ckbi ckck ckco ckdo ckin cknb cknc ckob ckoc ckoi ckoo ckor ckrc ckrd cnbc cnci cnco cndd cnib cnic cnid cnki cnrc cnrr cobb cobi cobo cock coco codd codi coin coir cok- coko con- conc cond coni conk conn cono coob cood cook coon cor- corb corc cord cori cork corn coro corr crbc crcc crcr crdc crib cric crik crin crkc crob croc crod crok cron croo cror d-bo dbcc dbrn dcbc dccb dccc dcci dcdb dcii dcio dcon dcrk dddd ddoc ddrc dibb dibo dici dick dico didi dido diii diki diko din- dinc dini dink dinn dino dioc dion dior dird dirk dirr dkdc dkid dnic dnoc dnrc dobb dobi doci dock doco dod- dodd dodi dodo doid doin doki doko donc dond doni donk donn dono donr doob dood dook doon door dorc dord dori dork dorn doro dorr drbc drib dric drin drno drob drod dron i-no ibdo ibid ibon ibrc ibrd ibri ibro icbc icbd iccb iccc icci iccn icco iccr icdc icdd icnb icnc icoc icod icon icor icrc icrr idcr iddo idic idid idin idio idir idno idoc idon idrc idro iicd iiii iiio iino iioi iioo iirc ikid ikin ikki ikko ikon ikoo ikri inbd inbo incb incd inci inco incr ind- indc indi indo inid inkd inki inni inno innr ino- inoi inon inor inri inro iobi ioci iod- iodd iodo ioii ioio ioko ioni ionn iono iooi iooo iori ircc ircd irdc irdo iri- iric irid irin irio irki irob iroc irod iron irrc irri k-ci k-id kbbb kbbc kbbd kbbi kbbk kbbo kbbr kbcb kbci kbck kbco kbcr kbdb kbdi kbdn kbdo kbdr kbib kbic kbid kbik kbio kbkb kbkk kbko kbkr kbnd kbnn kbno kbnr kbob kboc kbod kboi kbok kbon kboo kbrb kbrc kbrd kbri kbrk kbrn kbro kcbc kcbd kcbi kcbk kcbr kccb kccc kccd kcci kcck kccr kcdc kcdd kcdi kcdr kcic kcid kcii