-ic bbb bbc bbh bbi bbn bbo bbr bbs bcb bcc bch bci bcn bco bcr bcs bhb bhc bhh bhi bho bhr bhs bi- bib bic bih bii bin bio bir bis bnb bnc bni bnn bno bnr bns bob boc boh boi bon boo bor bos brb brh bri brn bro brr brs bsb bsc bsh bsi bsn bso bsr bss c-- cbb cbc cbh cbi cbn cbo cbr cbs ccb ccc cch cci ccn cco ccr ccs ch- chb chc chh chi chn cho chr chs ci- cib cic cih cii cin cio cir cis cn- cnb cnc cnh cni cnn cno cnr cns co- cob coc coh coi con coo cor cos crb crc crh cri crn cro crr crs csb csc csh csi csn cso csr css h-i hbb hbc hbh hbi hbn hbo hbr hbs hcb hcc hch hci hcn hco hcr hcs hhb hhc hhh hhi hhn hho hhr hhs hib hic hih hii hin hio hir his hnb hnc hnh hnn hno hns hob hoc hoh hoi hon hoo hor hos hr- hrb hrc hrh hri hrn hro hrr hrs hsb hsc hsh hsi hsn hsr hss ibb ibc ibh ibi ibn ibo ibr ibs icb icc ich ici icn ico icr ics ihb ihc ihh ihi ihn iho ihr ihs iib iic iih iii iin iio iir iis in- inb inc inh ini inn ino inr ins io- iob ioc ioh ioi ion ioo ior ios ir- irb irc iri irn iro irr irs is- isb isc ish isi isn iso isr iss n-i nbb nbc nbi nbn nbo nbr nbs ncb ncc nch nci ncn nco ncr ncs nhb nhc nhh nhi nhn nhr nhs nib nic nih nii nin nio nir nis nnb nnc nnh nni nnn nno nns no- nob noc noh noi non noo nor nos nrb nrc nri nrn nro nrr nrs nsb nsc nsh nsi nsn nso nsr nss o-i ob- obb obc obh obi obn obo obr obs oc- ocb occ och oci ocn oco ocr ocs ohc ohh ohi ohn oho ohr ohs oib oic oii oin oio oir ois on- onb onc onh oni onn ono onr ons oo- oob ooc ooh ooi oon ooo oor oos or- orb orc orh ori orn oro orr ors os- osb osc osh osi osn oso osr oss rbb rbc rbh rbi rbn rbo rbr rbs rcb rcc rch rci rcn rco rcr rcs rh- rhb rhc rhh rhi rhn rho rhr rhs rib ric rih rii rin rio rir ris rnb rnc rnh rni rnn rno rnr rns rob roc roh roi ron roo ror ros rrb rrc rrh rri rrn rrr rrs rsb rsc rsh rsi rsn rso rsr rss sbb sbc sbh sbi sbn sbo sbr sbs scb scc sch sci scn sco scr scs sh- shb shc shh shi shn sho shr shs sib sic sih sii sin sio sir sis snb snc sni snn sno snr sns sob soc soh soi son soo sor sos sr- srb src srh sri srn sro srr srs ss- ssb ssc ssh ssi ssn sso ssr sss

bbbb bbbs bbch bbci bbhs bbin bbrc bcbc bcbs bccc bcci bccs bchs bcis bcor bcos bcrs bcsc bcsn bcss bhcc bhhs bhir bhoi bhor bibb bibi bibo bibs bicc bich bici bico bics bihi bihs biin biis bin- binc binh bini binn bino bins bio- bioc bioi bion bios birb biri birn biro birr birs bis- bisc bish biso biss bnhs bnib bnin bnoc bnor bnrr bnss bobb bobi bobo bobs boch boco bocs bohn boho bohr bohs boi- boii boin bois bonc boni bonn bono bons boob booc booh boon boor boos bor- borh bori born boro borr bors bosc bosh bosi bosn boso boss brcb brhs bric brih brin brio bris brno brns brob broc broh bron broo bror bros brrr brrs brsb brsr bsci bscs bshs bsic bsin bsns bson bsos bssc c-bo cbbc cbbs cbcc cbcn cbcr cbcs cbhs cbir cbrh cbrn cbsc cbsi cbsn ccbc ccbn cccb cccc ccci cccs cchr cchs ccic ccii ccir ccis ccnb ccnc ccni ccnr ccns ccob ccoc ccrc ccri ccrs ccsi ccsn ccss chch chci chcs chhs chib chic chih chin chir chis chnb chnc chno chnr chns choc choh choi chon choo chor chos chrb chrc chrn chro chrr chrs chsc chsh chsi chsr cibc cibi cibo cicc cich cici cico cicr cics cihr cihs ciii ciis cin- cinc cini cino ciob cion cior cios cirb circ cirh ciri ciro cirr cirs cis- cisc cish cisn cisr ciss cnbc cnci cnco cnhs cnib cnic cnih cnoh cnrc cnrr cnss cobb cobh cobi cobo cobs coch coco cohn coho cohs coin coir cois con- conc coni conn cono cons coob cooh coon coos cor- corb corc cori corn coro corr cors cosc cosh cosi coso coss crbc crcc crcr crhs crib cric crin cris crns crob croc croh cron croo cror crss cscb cscc csch csci csco cscr cscs cshs csib csio csir csis csob csor csos csrc csrs cssr h-ii hbbs hbhs hbic hbio hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchi hchs hcis hcsc hcso hcss hhhh hhhs hi-c hibi hicc hich hico hics hihc hihi hiho hiis hinc hinn hino hins hiob hioc hiri hirn hiro hirs hisb hish hisn hiss hncs hnhs hnoi hobo hobs hoch hocn hocr hocs hohn hoho hoir hois honi hono hons hoon hoor hoos horc hori horn horo horr hors hosh hoss hrhs hrib hrob hron hros hrrc hrso hsbc hscc hsci hscn hshs hsin hsni hsob hson i-no ibcs ibis ibns ibon ibos ibrc ibri ibro ibsn ibss icbc icbs iccb iccc icci iccn icco iccr iccs ichc ichi icho ichr ichs icis icnb icnc icns icoc icon icor icos icrc icrr icrs icsb icsc icsh icsi icsr icss ihcc ihis ihob ihrc ihss iiii iiio iiis iino iioi iioo iios iirc iirs iisc iisi iisr inbo incb inch inci inco incr