-ic b-u bbb bbc bbg bbi bbo bbr bbs bbu bby bcb bcc bcg bci bco bcr bcs bcu bcy bgb bgc bgg bgi bgo bgr bgs bgu bi- bib bic big bii bio bir bis biu biy bob boc bog boi boo bor bos bou boy brb brg bri bro brr brs bru bry bsb bsc bsg bsi bso bsr bss bsu bsy bub buc bug bui buo bur bus buu buy by- byc byg byi byo byr bys byu c-- cbb cbc cbg cbi cbo cbr cbs cbu cby ccb ccc ccg cci cco ccr ccs ccu cgb cgc cgg cgi cgo cgr cgs cgu cgy ci- cib cic cig cii cio cir cis ciu co- cob coc cog coi coo cor cos cou coy crb crc crg cri cro crr crs cru cry csb csc csg csi cso csr css csu csy cub cuc cug cui cuo cur cus cuu cuy cyb cyc cyg cyo cyr cys gbc gbg gbi gbo gbr gbs gbu gby gcb gcc gcg gci gco gcr gcs gcu ggb ggc ggg ggi ggo ggr ggs ggu gib gic gig gii gio gir gis giu giy gob goc gog goi goo gor gos gou goy grb grc grg gri gro grr grs gru gry gsb gsc gsg gsi gso gsr gss gsu gu- gub guc gug gui guo gur gus guu guy gy- gyb gyo gyr gys ibb ibc ibg ibi ibo ibr ibs ibu iby icb icc icg ici ico icr ics icu icy igb igc igg igi igo igr igs igu igy iib iic iii iio iir iis iiu io- iob ioc iog ioi ioo ior ios iou ir- irb irc irg iri iro irr irs iru iry is- isb isc isg isi iso isr iss isu isy iu- iub iuc iug iui iur ius iyc iyo iyr iys iyy o-i ob- obb obc obg obi obo obr obs obu oby oc- ocb occ ocg oci oco ocr ocs ocu ogc ogg ogi ogo ogs ogy oib oic oii oio oir ois oiu oo- oob ooc oog ooi ooo oor oos or- orb orc org ori oro orr ors oru ory os- osb osc osg osi oso osr oss osu ou- ouc oui ouo our ous oyi oyo oys rbb rbc rbg rbi rbo rbr rbs rbu rcb rcc rcg rci rco rcr rcs rcu rgb rgc rgg rgi rgo rgr rgs rib ric rig rii rio rir ris riy rob roc rog roi roo ror ros rou roy rrb rrc rrg rri rrr rrs rru rsb rsc rsg rsi rso rsr rss rsu rub ruc rug rui ruo rur rus ruu ruy ry- ryc ryg ryo ryr rys ryu ryy sbb sbc sbg sbi sbo sbr sbs sbu sby scb scc scg sci sco scr scs scu sgb sgc sgg sgi sgo sgr sgs sgu sib sic sig sii sio sir sis siu sob soc sog soi soo sor sos sou soy sr- srb src srg sri sro srr srs sry ss- ssb ssc ssg ssi sso ssr sss ssu sub suc sug sui suo sur sus suu suy sy- syb syc syg syi syr sys syu ubb ubc ubg ubi ubo ubr ubs ubu uby ucb ucc ucg uci uco ucr ucs ucu ugb ugc ugg ugi ugo ugr ugs ugu uib uic uig uii uio uir uis uiu uob uoc uog uoo uor uos ur- urb urc urg uri uro urr urs uru ury usb usc usg usi uso usr uss usu uuc uug uur uus uuu uyc uyi uyo uys uyu ybc ybg ybi ybr ybs yby ycc yci yco ycs ycu ycy ygc ygo yig yii yio yir yis yob yoc yog yoi yoo yor yos you yoy yrc yrg yro yrs yru ysb ysc ysg ysi yso ysr yss ysu ysy yug yui yuo yur yus yuu yuy yyb yyc yyg yys yyu yyy