-ic b-u bbb bbc bbi bbn bbr bbs bbu bby bcb bcc bci bcn bcr bcs bcu bcy bi- bib bic bii bin bir bis biu biy bnb bnc bni bnn bnr bns bnu brb bri brn brr brs bru bry bsb bsc bsi bsn bsr bss bsu bsy bub buc bui bun bur bus buu buy by- byc byi byn byr bys byu c-- cbb cbc cbi cbn cbr cbs cbu cby ccb ccc cci ccn ccr ccs ccu ci- cib cic cii cin cir cis ciu cn- cnb cnc cni cnn cnr cns cnu cny crb crc cri crn crr crs cru cry csb csc csi csn csr css csu csy cub cuc cui cun cur cus cuu cuy cyb cyc cyn cyr cys ibb ibc ibi ibn ibr ibs ibu iby icb icc ici icn icr ics icu icy iib iic iii iin iir iis iiu in- inb inc ini inn inr ins inu iny ir- irb irc iri irn irr irs iru iry is- isb isc isi isn isr iss isu isy iu- iub iuc iui iur ius iyc iyr iys iyy n-i nbb nbc nbi nbn nbr nbs nbu ncb ncc nci ncn ncr ncs ncu nib nic nii nin nir nis niu nnb nnc nni nnn nns nnu nrb nrc nri nrn nrr nrs nru nry nsb nsc nsi nsn nsr nss nsu nsy nub nuc nui nun nur nus nuu nuy nyc nyn nys nyu nyy rbb rbc rbi rbn rbr rbs rbu rcb rcc rci rcn rcr rcs rcu rib ric rii rin rir ris riy rnb rnc rni rnn rnr rns rnu rny rrb rrc rri rrn rrr rrs rru rsb rsc rsi rsn rsr rss rsu rub ruc rui run rur rus ruu ruy ry- ryc ryn ryr rys ryu ryy sbb sbc sbi sbn sbr sbs sbu sby scb scc sci scn scr scs scu sib sic sii sin sir sis siu snb snc sni snn snr sns snu sny sr- srb src sri srn srr srs sry ss- ssb ssc ssi ssn ssr sss ssu sub suc sui sun sur sus suu suy sy- syb syc syi syn syr sys syu ubb ubc ubi ubn ubr ubs ubu uby ucb ucc uci ucn ucr ucs ucu uib uic uii uin uir uis uiu un- unb unc uni unn unr uns unu uny ur- urb urc uri urn urr urs uru ury usb usc usi usn usr uss usu uuc uun uur uus uuu uyc uyi uys uyu ybc ybi ybr ybs yby ycc yci ycs ycu ycy yii yin yir yis ynn yns ynu yny yrc yrn yrs yru ysb ysc ysi ysr yss ysu ysy yui yun yur yus yuu yuy yyb yyc yys yyu yyy