-ic bbb bbc bbh bbi bbn bbo bbr bbs bby bcb bcc bch bci bcn bco bcr bcs bcy bhb bhc bhh bhi bho bhr bhs bi- bib bic bih bii bin bio bir bis biy bnb bnc bni bnn bno bnr bns bob boc boh boi bon boo bor bos boy brb brh bri brn bro brr brs bry bsb bsc bsh bsi bsn bso bsr bss bsy by- byc byh byi byn byo byr bys c-- cbb cbc cbh cbi cbn cbo cbr cbs cby ccb ccc cch cci ccn cco ccr ccs ch- chb chc chh chi chn cho chr chs chy ci- cib cic cih cii cin cio cir cis cn- cnb cnc cnh cni cnn cno cnr cns cny co- cob coc coh coi con coo cor cos coy crb crc crh cri crn cro crr crs cry csb csc csh csi csn cso csr css csy cyb cyc cyn cyo cyr cys h-i hbb hbc hbh hbi hbn hbo hbr hbs hby hcb hcc hch hci hcn hco hcr hcs hcy hhb hhc hhh hhi hhn hho hhr hhs hhy hib hic hih hii hin hio hir his hnb hnc hnh hnn hno hns hny hob hoc hoh hoi hon hoo hor hos hoy hr- hrb hrc hrh hri hrn hro hrr hrs hsb hsc hsh hsi hsn hsr hss hsy hy- hyb hyc hyh hyi hyn hyo hyr hys hyy ibb ibc ibh ibi ibn ibo ibr ibs iby icb icc ich ici icn ico icr ics icy ihb ihc ihh ihi ihn iho ihr ihs ihy iib iic iih iii iin iio iir iis in- inb inc inh ini inn ino inr ins iny io- iob ioc ioh ioi ion ioo ior ios ir- irb irc iri irn iro irr irs iry is- isb isc ish isi isn iso isr iss isy iyc iyo iyr iys iyy n-i nbb nbc nbi nbn nbo nbr nbs ncb ncc nch nci ncn nco ncr ncs nhb nhc nhh nhi nhn nhr nhs nhy nib nic nih nii nin nio nir nis nnb nnc nnh nni nnn nno nns no- nob noc noh noi non noo nor nos noy nrb nrc nri nrn nro nrr nrs nry nsb nsc nsh nsi nsn nso nsr nss nsy nyc nyn nyo nys nyy o-i ob- obb obc obh obi obn obo obr obs oby 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 ony oo- oob ooc ooh ooi oon ooo oor oos or- orb orc orh ori orn oro orr ors ory os- osb osc osh osi osn oso osr oss oyi oyo oys 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 riy rnb rnc rnh rni rnn rno rnr rns rny rob roc roh roi ron roo ror ros roy rrb rrc rrh rri rrn rrr rrs rsb rsc rsh rsi rsn rso rsr rss ry- ryc ryn ryo ryr rys ryy sbb sbc sbh sbi sbn sbo sbr sbs sby scb scc sch sci scn sco scr scs sh- shb shc shh shi shn sho shr shs shy sib sic sih sii sin sio sir sis snb snc sni snn sno snr sns sny sob soc soh soi son soo sor sos soy sr- srb src srh sri srn sro srr srs sry ss- ssb ssc ssh ssi ssn sso ssr sss sy- syb syc syh syi syn syr sys ybc ybi ybr ybs yby ycc ych yci yco ycs ycy yhc yhi yhs yih yii yin yio yir yis ynn yns yny yob yoc yoi yon yoo yor yos yoy yrc yrn yro yrs ysb ysc ysi yso ysr yss ysy yyb yyc yys yyy