-ic bbb bbc bbh bbi bbo bbr bbs bby bcb bcc bch bci bco bcr bcs bcv bcy bhb bhc bhh bhi bho bhr bhs bhv bi- bib bic bih bii bio bir bis biv biy bob boc boh boi boo bor bos bov boy brb brh bri bro brr brs brv bry bsb bsc bsh bsi bso bsr bss bsv bsy bvb bvc bvh bvi bvo bvr bvs bvv by- byc byh byi byo byr bys c-- cbb cbc cbh cbi cbo cbr cbs cbv cby ccb ccc cch cci cco ccr ccs ccv ch- chb chc chh chi cho chr chs chv chy ci- cib cic cih cii cio cir cis civ co- cob coc coh coi coo cor cos cov coy crb crc crh cri cro crr crs crv cry csb csc csh csi cso csr css csv csy cvb cvc cvh cvi cvo cvr cvs cvv cyb cyc cyo cyr cys h-i hbb hbc hbh hbi hbo hbr hbs hbv hby hcb hcc hch hci hco hcr hcs hcv hcy hhb hhc hhh hhi hho hhr hhs hhv hhy hib hic hih hii hio hir his hiv hob hoc hoh hoi hoo hor hos hov hoy hr- hrb hrc hrh hri hro hrr hrs hrv hsb hsc hsh hsi hsr hss hsv hsy hv- hvb hvc hvo hvr hvs hvv hvy hy- hyb hyc hyh hyi hyo hyr hys hyv hyy i-v ibb ibc ibh ibi ibo ibr ibs ibv iby icb icc ich ici ico icr ics icv icy ihb ihc ihh ihi iho ihr ihs ihv ihy iib iic iih iii iio iir iis io- iob ioc ioh ioi ioo ior ios iov ir- irb irc iri iro irr irs irv iry is- isb isc ish isi iso isr iss isv isy ivb ivc ivi ivo ivr ivs ivv ivy iyc iyo iyr iys iyy o-i ob- obb obc obh obi obo obr obs obv oby oc- ocb occ och oci oco ocr ocs ocv ohc ohh ohi oho ohr ohs oib oic oii oio oir ois oiv oo- oob ooc ooh ooi ooo oor oos oov or- orb orc orh ori oro orr ors orv ory os- osb osc osh osi oso osr oss osv ov- ovb ovc ovh ovi ovo ovs ovv oyi oyo oys rbb rbc rbh rbi rbo rbr rbs rcb rcc rch rci rco rcr rcs rcv rh- rhb rhc rhh rhi rho rhr rhs rhv rib ric rih rii rio rir ris riv riy rob roc roh roi roo ror ros rov roy rrb rrc rrh rri rrr rrs rsb rsc rsh rsi rso rsr rss rsv rvb rvc rvh rvi rvo rvr rvs rvv rvy ry- ryc ryo ryr rys ryy sbb sbc sbh sbi sbo sbr sbs sbv sby scb scc sch sci sco scr scs scv sh- shb shc shh shi sho shr shs shv shy sib sic sih sii sio sir sis siv sob soc soh soi soo sor sos sov soy sr- srb src srh sri sro srr srs srv sry ss- ssb ssc ssh ssi sso ssr sss ssv svb svc svi svo svr svs svv svy sy- syb syc syh syi syr sys vbc vbh vbi vbo vbr vbs vbv vcc vch vci vco vcr vcs vcy vh- vhb vhc vhi vho vhs vi- vib vic vii vio vir vis viv viy vob voc voh voi voo vor vos vov voy vrb vrc vrh vri vrr vrs vry vsb vsc vsh vsi vso vsr vss vsv vvb vvc vvi vvo vvr vvs vvv ybc ybi ybr ybs yby ycc ych yci yco ycs ycv ycy yhc yhi yhs yih yii yio yir yis yob yoc yoi yoo yor yos yoy yrc yro yrs ysb ysc ysi yso ysr yss ysy yvi yvo yvr yvy yyb yyc yys yyy