-ic bbb bbc bbd bbi bbl bbn bbr bbs bcb bcc bcd bci bcl bcn bcr bcs bdb bdc bdd bdi bdl bdr bds bi- bib bic bid bii bil bin bir bis blb blc bld bli bll bln blr bls bnb bnc bnd bni bnl bnn bnr bns brb brd bri brl brn brr brs bsb bsc bsd bsi bsl bsn bsr bss c-- cbb cbc cbd cbi cbl cbn cbr cbs ccb ccc ccd cci ccl ccn ccr ccs cdb cdc cdd cdi cdl cdn cdr cds ci- cib cic cid cii cil cin cir cis cl- clb clc cld cli cll cln clr cls cn- cnb cnc cnd cni cnl cnn cnr cns crb crc crd cri crl crn crr crs csb csc csd csi csl csn csr css dbb dbc dbd dbi dbl dbn dbr dbs dcb dcc dcd dci dcl dcn dcr dcs ddb ddc ddd ddi ddl ddn ddr dds di- dib dic did dii dil din dir dis dl- dlb dlc dld dli dll dlr dls dnb dnc dnd dni dnl dnn dnr dns drb drc drd dri drl drn drr drs dsb dsc dsd dsi dsl dsn dsr dss i-d ibb ibc ibd ibi ibl ibn ibr ibs icb icc icd ici icl icn icr ics idb idc idd idi idl idn idr ids iib iic iid iii iil iin iir iis il- ilb ilc ild ili ill iln ilr ils in- inb inc ind ini inl inn inr ins ir- irb irc ird iri irl irn irr irs is- isb isc isd isi isl isn isr iss lbb lbc lbd lbi lbl lbr lbs lcb lcc lcd lci lcl lcn lcr lcs ldb ldc ldd ldi ldl ldn ldr lds lib lic lid lii lil lin lir lis llb llc lld lli lll lln llr lls lnb lnc lnd lni lnl lnn lnr lns lrb lrc lrd lri lrn lrr lrs lsb lsc lsd lsi lsl lsn lsr lss n-i nbb nbc nbd nbi nbl nbn nbr nbs ncb ncc ncd nci ncl ncn ncr ncs ndb ndc ndd ndi ndl ndn ndr nds nib nic nid nii nil nin nir nis nlb nlc nld nli nll nln nlr nls nnb nnc nni nnl nnn nns nrb nrc nrd nri nrl nrn nrr nrs nsb nsc nsd nsi nsl nsn nsr nss rbb rbc rbd rbi rbl rbn rbr rbs rcb rcc rcd rci rcl rcn rcr rcs rdb rdc rdd rdi rdl rdn rdr rds rib ric rid rii ril rin rir ris rlc rld rli rll rln rlr rls rnb rnc rnd rni rnn rnr rns rrb rrc rrd rri rrl rrn rrr rrs rsb rsc rsd rsi rsl rsn rsr rss sbb sbc sbd sbi sbl sbn sbr sbs scb scc scd sci scl scn scr scs sdb sdc sdd sdi sdl sdn sdr sds sib sic sid sii sil sin sir sis slb slc sld sli sll sln slr sls snb snc snd sni snl snn snr sns sr- srb src srd sri srl srn srr srs ss- ssb ssc ssd ssi ssl ssn ssr sss

bbbb bbbs bbci bbdd bbin bblb bbls bbrc bcbc bcbs bccc bcci bccl bccs bcds bcis bcrs bcsc bcsl bcsn bcss bd-r bdbc bddc bdii bdin bdls bdsd bibb bibi bibl bibs bicc bici bics bidi bidr bids biin biis bild bili bill bils bin- binc bind bini binn bins birb bird biri birl birn birr birs bis- bisc bisd bisl biss bldc bldr blic blin blir blis blls blni blrc blss bnib bnin bnrr bnss brcb brds bric brid bril brin bris brls brns brrr brrs brsb brsr bsbd bsci bscs bsdl bsic bsin bslc bsnd bsns bsrd bssc bssd c-cd cbbc cbbs cbcc cbcl cbcn cbcr cbcs cbdb cbdc cbdi cbdn cbds cbid cbir cblb cblc cbln cbnd cbrd cbrl cbrn cbsc cbsi cbsn ccbc ccbn cccb cccc ccci cccl cccs ccdc ccdi ccdn ccdr ccds ccic ccid ccii ccil ccir ccis cclc ccli ccls ccnb ccnc ccni ccnr ccns ccrc ccri ccrl ccrs ccsd ccsi ccsl ccsn ccss cd-r cdcs cddb cddl cddr cdic cdii cdis cdli cdls cdnb cdnc cdrs cdss cibc cibi cicc cici cicr cics cidc cidi cidr cids ciid ciii ciis cili cill cils cin- cinc cind cini cirb circ ciri cirl cirr cirs cis- cisc cisd cisl cisn cisr ciss clcd cldc cldr clib clic clii clin clir clis clrd clri clrs clsc cnbc cnbl cnci cndd cnib cnic cnid cnrc cnrr cnsl cnss crbc crcc crcr crdc crib cric crin cris crls crns crss cscb cscc cscd csci cscl cscr cscs csdb csdn csdr csib csid csir csis csld cslr csrc csrd csrs cssd cssr dbcc dbcs dbls dbnl dbrn dbrs dbss dcbc dccb dccc dcci dccl dccs dcdb dcds dcii dcil dcis dcli dcls dcns dcsc dcss dddd ddlc ddrc ddss dibb dibs dici didi dids diii diis dili dill dils din- dinc dini dinn dins dird dirl dirr dirs dis- disc disd disi diss dlbd dlcs dlib dlii dlil dlis dlrs dncs dnic dnis dnrc dnsc drbc drib dric dril drin drrs dsbc dscc dscn dscr dscs dsdr dsls dsrc dsri dsrr dssc dssi dssn ibcs ibid ibis ibns ibrc ibrd ibri ibsn ibss icbc icbd icbs iccb iccc icci iccl iccn iccr iccs icdc icdd icdl icis icll iclr icnb icnc icns icrc icrr icrs icsb icsc icsd icsi icsr icss idcr idic idid idil idin idir idis idli idls idrc idsc idss iicd iiii iiis iirc iirs iisc iisd iisi iisr ilbc ilcd ilic ilin ilir ilis ill- illd illi ills ilni inbd incb incd inci incl incr incs ind- indc indi inds inid inis inni innr inns inri inrs insc inss ircc ircd ircs irdc irds iri- iric irid iril irin iris irlb irrc irri irrs isbd isbl isbn iscc iscd isci iscn iscr iscs isdb isdc isdn isds isic isil isin isis isls isri issc issi issr isss lbcc lbds lblr lbrs lbsc lcbc lccc lccs