-ic b-u bbb bbc bbi bbn bbo bbr bbs bbu bcb bcc bci bcn bco bcr bcs bcu bi- bib bic bii bin bio bir bis biu bnb bnc bni bnn bno bnr bns bnu bob boc boi bon boo bor bos bou brb bri brn bro brr brs bru bsb bsc bsi bsn bso bsr bss bsu bub buc bui bun buo bur bus buu c-- cbb cbc cbi cbn cbo cbr cbs cbu ccb ccc cci ccn cco ccr ccs ccu ci- cib cic cii cin cio cir cis ciu cn- cnb cnc cni cnn cno cnr cns cnu co- cob coc coi con coo cor cos cou crb crc cri crn cro crr crs cru csb csc csi csn cso csr css csu cub cuc cui cun cuo cur cus cuu ibb ibc ibi ibn ibo ibr ibs ibu icb icc ici icn ico icr ics icu iib iic iii iin iio iir iis iiu in- inb inc ini inn ino inr ins inu io- iob ioc ioi ion ioo ior ios iou ir- irb irc iri irn iro irr irs iru is- isb isc isi isn iso isr iss isu iu- iub iuc iui iur ius n-i nbb nbc nbi nbn nbo nbr nbs nbu ncb ncc nci ncn nco ncr ncs ncu nib nic nii nin nio nir nis niu nnb nnc nni nnn nno nns nnu no- nob noc noi non noo nor nos nou nrb nrc nri nrn nro nrr nrs nru nsb nsc nsi nsn nso nsr nss nsu nub nuc nui nun nuo nur nus nuu o-i ob- obb obc obi obn obo obr obs obu oc- ocb occ oci ocn oco ocr ocs ocu oib oic oii oin oio oir ois oiu on- onb onc oni onn ono onr ons onu oo- oob ooc ooi oon ooo oor oos or- orb orc ori orn oro orr ors oru os- osb osc osi osn oso osr oss osu ou- ouc oui oun ouo our ous rbb rbc rbi rbn rbo rbr rbs rbu rcb rcc rci rcn rco rcr rcs rcu rib ric rii rin rio rir ris rnb rnc rni rnn rno rnr rns rnu rob roc roi ron roo ror ros rou rrb rrc rri rrn rrr rrs rru rsb rsc rsi rsn rso rsr rss rsu rub ruc rui run ruo rur rus ruu sbb sbc sbi sbn sbo sbr sbs sbu scb scc sci scn sco scr scs scu sib sic sii sin sio sir sis siu snb snc sni snn sno snr sns snu sob soc soi son soo sor sos sou sr- srb src sri srn sro srr srs ss- ssb ssc ssi ssn sso ssr sss ssu sub suc sui sun suo sur sus suu ubb ubc ubi ubn ubo ubr ubs ubu ucb ucc uci ucn uco ucr ucs ucu uib uic uii uin uio uir uis uiu un- unb unc uni unn uno unr uns unu uob uoc uon uoo uor uos ur- urb urc uri urn uro urr urs uru usb usc usi usn uso usr uss usu uuc uun uur uus uuu

-ous bbbb bbbs bbci bbin bbrc bcbc bcbs bccc bcci bccs bcis bcnu bcor bcos bcrs bcru bcsc bcsn bcss bcuc bibb bibi bibo bibs bicc bici bico bics biin biis bin- binc bini binn bino bins binu bio- bioc bioi bion bios biou birb biri birn biro birr birs biru bis- bisc biso biss bisu bnib bnin bnoc bnor bnrr bnss bobb bobi bobo bobs bobu boco bocs bocu boi- boii boin bois boiu bonc boni bonn bono bons bonu boob booc boon boor boos bor- bori born boro borr bors boru bosc bosi bosn boso boss bosu boun bour bous brcb bric brin brio bris brno brns brob broc bron broo bror bros brou brrr brrs brsb brsr bruc brun brus bsci bscs bsic bsin bsns bson bsos bssc bubb bubi bubo bubs bubu bucc buci buco bucs bucu buic buin buir buis buiu bunb buni bunn buno buns bunu buon bur- burb buri burn buro burr burs buru busc busi buss busu buus c-bo cbbc cbbs cbcc cbcn cbcr cbcs cbcu cbir cbrn cbsc cbsi cbsn cbus ccbc ccbn cccb cccc ccci cccs cccu ccic ccii ccir ccis ccnb ccnc ccni ccnr ccns ccnu ccob ccoc ccrc ccri ccrs ccsi ccsn ccss ccuc ccus cibc cibi cibo cicc cici cico cicr cics cicu ciii ciis cin- cinc cini cino ciob cion cior cios cirb circ ciri ciro cirr cirs cis- cisc cisn cisr ciss ciuc cius cnbc cnci cnco cnib cnic cnrc cnrr cnss cobb cobi cobo cobs cobu coco cocu coin coir cois con- conc coni conn cono cons coob coon coos cor- corb corc cori corn coro corr cors cosc cosi coso coss coub coun cour cous crbc crbu crcc crcr crib cric crin cris criu crns crob croc cron croo cror crss crub crun crus cscb cscc csci csco cscr cscs csib csio csir csis csob csor csos csrc csrs cssr csur csus cub- cubb cubi cubs cucc cuci cucn cui- cuin cuir cuis cuno cuon curb curi curn curo curr curs cusb cuso cuss cusu i-no ibcs ibis ibns ibon ibos ibrc ibri ibro ibsn ibss ibus icbc icbs iccb iccc icci iccn icco iccr iccs iccu icis icnb icnc icns icoc icon icor icos icrc icrr icrs icru icsb icsc icsi icsr icss icub icus iiii iiio iiis iino iioi iioo iios iirc iirs iisc iisi iisr iisu iiuc inbo incb inci inco incr incs inis inni inno innr inns innu ino- inoi inon inor inos inou inri inro inrs insc inso inss insu inui inun inus iobi ioci ioii ioio ioni ionn iono ions iooi iooo ioos iori iors ioso iosu ioun ious ircc ircs ircu iri- iric irin irio iris irob iroc iron irrc irri irrs irun irus isbn iscc isci iscn isco iscr iscs iscu isic isin isis isno iso- isoc ison isor isos isri issc issi