-ic bbb bbc bbd bbi bbn bbo bbr bbs bcb bcc bcd bci bcn bco bcr bcs bdb bdc bdd bdi bdo bdr bds bi- bib bic bid bii bin bio bir bis bnb bnc bnd bni bnn bno bnr bns bob boc bod boi bon boo bor bos brb brd bri brn bro brr brs bsb bsc bsd bsi bsn bso bsr bss c-- cbb cbc cbd cbi cbn cbo cbr cbs ccb ccc ccd cci ccn cco ccr ccs cdb cdc cdd cdi cdn cdo cdr cds ci- cib cic cid cii cin cio cir cis cn- cnb cnc cnd cni cnn cno cnr cns co- cob coc cod coi con coo cor cos crb crc crd cri crn cro crr crs csb csc csd csi csn cso csr css dbb dbc dbd dbi dbn dbo dbr dbs dcb dcc dcd dci dcn dco dcr dcs ddb ddc ddd ddi ddn ddo ddr dds di- dib dic did dii din dio dir dis dnb dnc dnd dni dnn dno dnr dns dob doc dod doi don doo dor dos drb drc drd dri drn dro drr drs dsb dsc dsd dsi dsn dso dsr dss i-d ibb ibc ibd ibi ibn ibo ibr ibs icb icc icd ici icn ico icr ics idb idc idd idi idn ido idr ids iib iic iid iii iin iio iir iis in- inb inc ind ini inn ino inr ins io- iob ioc iod ioi ion ioo ior ios ir- irb irc ird iri irn iro irr irs is- isb isc isd isi isn iso isr iss n-i nbb nbc nbd nbi nbn nbo nbr nbs ncb ncc ncd nci ncn nco ncr ncs ndb ndc ndd ndi ndn ndo ndr nds nib nic nid nii nin nio nir nis nnb nnc nni nnn nno nns no- nob noc nod noi non noo nor nos nrb nrc nrd nri nrn nro nrr nrs nsb nsc nsd nsi nsn nso nsr nss o-i ob- obb obc obd obi obn obo obr obs oc- ocb occ ocd oci ocn oco ocr ocs odb odc odd odi odn odo odr ods oib oic oid oii oin oio oir ois on- onb onc ond oni onn ono onr ons oo- oob ooc ood ooi oon ooo oor oos or- orb orc ord ori orn oro orr ors os- osb osc osd osi osn oso osr oss rbb rbc rbd rbi rbn rbo rbr rbs rcb rcc rcd rci rcn rco rcr rcs rdb rdc rdd rdi rdn rdo rdr rds rib ric rid rii rin rio rir ris rnb rnc rnd rni rnn rno rnr rns rob roc rod roi ron roo ror ros rrb rrc rrd rri rrn rrr rrs rsb rsc rsd rsi rsn rso rsr rss sbb sbc sbd sbi sbn sbo sbr sbs scb scc scd sci scn sco scr scs sdb sdc sdd sdi sdn sdo sdr sds sib sic sid sii sin sio sir sis snb snc snd sni snn sno snr sns sob soc sod soi son soo sor sos sr- srb src srd sri srn sro srr srs ss- ssb ssc ssd ssi ssn sso ssr sss

bbbb bbbs bbci bbdd bbdo bbin bbrc bcbc bcbs bccc bcci bccs bcds bcis bcor bcos bcrs bcsc bcsn bcss bd-r bdbc bddc bdii bdin bdos bdsd bibb bibi bibo bibs bicc bici bico bics bidi bido bidr bids biin biis bin- binc bind bini binn bino bins bio- bioc bioi bion bios birb bird biri birn biro birr birs bis- bisc bisd biso biss bnib bnin bnoc bnor bnrr bnss bobb bobi bobo bobs boco bocs bodb bodi bodo bods boi- boid boii boin bois bonc bond boni bonn bono bons boob booc bood boon boor boos bor- bord bori born boro borr bors bosc bosi bosn boso boss brcb brdo brds bric brid brin brio bris brno brns brob broc brod bron broo bror bros brrr brrs brsb brsr bsbd bsci bscs bsic bsin bsnd bsns bsod bson bsos bsrd bssc bssd c-bo c-cd cbbc cbbs cbcc cbcn cbcr cbcs cbdb cbdc cbdi cbdn cbdo cbds cbid cbir cbnd cbrd cbrn cbsc cbsi cbsn ccbc ccbn cccb cccc ccci cccs ccdc ccdi ccdn ccdr ccds ccic ccid ccii ccir ccis ccnb ccnc ccni ccnr ccns ccob ccoc ccod ccrc ccri ccrs ccsd ccsi ccsn ccss cd-r cdcs cddb cddr cdic cdii cdio cdis cdnb cdnc cdon cdos cdrs cdss cibc cibi cibo cicc cici cico cicr cics cidc cidi cidr cids ciid ciii ciis cin- cinc cind cini cino ciob cion cior cios cirb circ ciri ciro cirr cirs cis- cisc cisd cisn cisr ciss cnbc cnci cnco cndd cnib cnic cnid cnrc cnrr cnss cobb cobi cobo cobs coco codd codi cods coin coir cois con- conc cond coni conn cono cons coob cood coon coos cor- corb corc cord cori corn coro corr cors cosc cosi coso coss crbc crcc crcr crdc crib cric crin cris crns crob croc crod cron croo cror crss cscb cscc cscd csci csco cscr cscs csdb csdn csdr csib csid csio csir csis csob csor csos csrc csrd csrs cssd cssr d-bo dbcc dbcs dbos dbrn dbrs dbss dcbc dccb dccc dcci dccs dcdb dcds dcii dcio dcis dcns dcon dcos dcsc dcss dddd ddoc ddrc ddss dibb dibo dibs dici dico didi dido dids diii diis din- dinc dini dinn dino dins dioc dion dior dios dird dirr dirs dis- disc disd disi diso diss dncs dnic dnis dnoc dnrc dnsc dobb dobi dobs doci doco docs dod- dodd dodi dodo dods doid doin dois donc dond doni donn dono donr dons doob dood doon door doos dorc dord dori dorn doro dorr dors dosi doso doss drbc drib dric drin drno drob drod dron drrs dsbc dscc dscn dscr dscs dsdr dsos dsrc dsri dsrr dssc dssi dssn i-no ibcs ibdo ibid ibis ibns ibon ibos ibrc ibrd ibri ibro ibsn ibss icbc icbd icbs iccb iccc icci