-ic bbb bbc bbg bbh bbi bbo bbr bbs bcb bcc bcg bch bci bco bcr bcs bgb bgc bgg bgh bgi bgo bgr bgs bhb bhc bhg bhh bhi bho bhr bhs bi- bib bic big bih bii bio bir bis bob boc bog boh boi boo bor bos brb brg brh bri bro brr brs bsb bsc bsg bsh bsi bso bsr bss c-- cbb cbc cbg cbh cbi cbo cbr cbs ccb ccc ccg cch cci cco ccr ccs cgb cgc cgg cgh cgi cgo cgr cgs ch- chb chc chg chh chi cho chr chs ci- cib cic cig cih cii cio cir cis co- cob coc cog coh coi coo cor cos crb crc crg crh cri cro crr crs csb csc csg csh csi cso csr css gbc gbg gbh gbi gbo gbr gbs gcb gcc gcg gch gci gco gcr gcs ggb ggc ggg ggh ggi ggo ggr ggs ghb ghc ghg ghh ghi gho ghr ghs gib gic gig gih gii gio gir gis gob goc gog goh goi goo gor gos grb grc grg grh gri gro grr grs gsb gsc gsg gsi gso gsr gss h-i hbb hbc hbg hbh hbi hbo hbr hbs hcb hcc hcg hch hci hco hcr hcs hgb hgc hgg hgh hgi hgo hgr hgs hhb hhc hhg hhh hhi hho hhr hhs hib hic hig hih hii hio hir his hob hoc hog hoh hoi hoo hor hos hr- hrb hrc hrg hrh hri hro hrr hrs hsb hsc hsg hsh hsi hsr hss ibb ibc ibg ibh ibi ibo ibr ibs icb icc icg ich ici ico icr ics igb igc igg igh igi igo igr igs ihb ihc ihg ihh ihi iho ihr ihs iib iic iih iii iio iir iis io- iob ioc iog ioh ioi ioo ior ios ir- irb irc irg iri iro irr irs is- isb isc isg ish isi iso isr iss o-i ob- obb obc obg obh obi obo obr obs oc- ocb occ ocg och oci oco ocr ocs ogc ogg ogh ogi ogo ogs ohc ohg ohh ohi oho ohr ohs oib oic oii oio oir ois oo- oob ooc oog ooh ooi ooo oor oos or- orb orc org orh ori oro orr ors os- osb osc osg osh osi oso osr oss rbb rbc rbg rbh rbi rbo rbr rbs rcb rcc rcg rch rci rco rcr rcs rgb rgc rgg rgh rgi rgo rgr rgs rh- rhb rhc rhg rhh rhi rho rhr rhs rib ric rig rih rii rio rir ris rob roc rog roh roi roo ror ros rrb rrc rrg rrh rri rrr rrs rsb rsc rsg rsh rsi rso rsr rss sbb sbc sbg sbh sbi sbo sbr sbs scb scc scg sch sci sco scr scs sgb sgc sgg sgh sgi sgo sgr sgs sh- shb shc shg shh shi sho shr shs sib sic sig sih sii sio sir sis sob soc sog soh soi soo sor sos sr- srb src srg srh sri sro srr srs ss- ssb ssc ssg ssh ssi sso ssr sss