-ic b-u bbb bbc bbi bbm bbo bbr bbu bby bcb bcc bci bcm bco bcr bcu bcy bi- bib bic bii bim bio bir biu biy bmb bmc bmi bmm bmo bmr bmu bob boc boi bom boo bor bou boy brb bri brm bro brr bru bry bub buc bui bum buo bur buu buy by- byc byi bym byo byr byu c-- cbb cbc cbi cbm cbo cbr cbu cby ccb ccc cci ccm cco ccr ccu ci- cib cic cii cim cio cir ciu cmb cmc cmi cmm cmo cmr cmu cmy co- cob coc coi com coo cor cou coy crb crc cri crm cro crr cru cry cub cuc cui cum cuo cur cuu cuy cyb cyc cym cyo cyr ibb ibc ibi ibm ibo ibr ibu iby icb icc ici icm ico icr icu icy iib iic iii iim iio iir iiu im- imb imc imi imm imo imu imy io- iob ioc ioi iom ioo ior iou ir- irb irc iri irm iro irr iru iry iu- iub iuc iui ium iur iyc iym iyo iyr iyy m-o m-r mbb mbc mbi mbm mbo mbr mbu mc- mcb mcc mci mcm mco mcr mcu mi- mib mic mii mim mio mir miu miy mmb mmc mmi mmm mmo mmr mmu mob moc moi mom moo mor mou moy mrb mrc mri mrm mro mrr mru mry mub muc mui mum mur muu muy my- myb myc mym myo myr myu o-i ob- obb obc obi obm obo obr obu oby oc- ocb occ oci ocm oco ocr ocu oib oic oii oim oio oir oiu om- omb omc omi omm omo omr omu omy oo- oob ooc ooi oom ooo oor or- orb orc ori orm oro orr oru ory ou- ouc oui oum ouo our oyi oyo rbb rbc rbi rbm rbo rbr rbu rcb rcc rci rcm rco rcr rcu rib ric rii rim rio rir riy rmb rmc rmi rmm rmo rmr rob roc roi rom roo ror rou roy rrb rrc rri rrm rrr rru rub ruc rui rum ruo rur ruu ruy ry- ryc rym ryo ryr ryu ryy ubb ubc ubi ubo ubr ubu uby ucb ucc uci ucm uco ucr ucu uib uic uii uim uio uir uiu um- umb umc umi umm umo umr umu uob uoc uom uoo uor ur- urb urc uri urm uro urr uru ury uuc uum uur uuu uyc uyi uyo uyu ybc ybi ybm ybr yby ycc yci yco ycu ycy yii yim yio yir ymc ymi ymm ymo yob yoc yoi yom yoo yor you yoy yrc yro yru yui yum yuo yur yuu yuy yyb yyc yyu yyy