-ic b-u bbb bbc bbi bbm bbo bbu bcb bcc bci bcm bco bcu bi- bib bic bii bim bio biu bmb bmc bmi bmm bmo bmu bob boc boi bom boo bou bub buc bui bum buo buu c-- cbb cbc cbi cbm cbo cbu ccb ccc cci ccm cco ccu ci- cib cic cii cim cio ciu cmb cmc cmi cmm cmo cmu co- cob coc coi com coo cou cub cuc cui cum cuo cuu ibb ibc ibi ibm ibo ibu icb icc ici icm ico icu iib iic iii iim iio iiu im- imb imc imi imm imo imu io- iob ioc ioi iom ioo iou iu- iub iuc iui ium m-o mbb mbc mbi mbm mbo mbu mc- mcb mcc mci mcm mco mcu mi- mib mic mii mim mio miu mmb mmc mmi mmm mmo mmu mob moc moi mom moo mou mub muc mui mum muu o-i ob- obb obc obi obm obo obu oc- ocb occ oci ocm oco ocu oib oic oii oim oio oiu om- omb omc omi omm omo omu oo- oob ooc ooi oom ooo ou- ouc oui oum ouo ubb ubc ubi ubo ubu ucb ucc uci ucm uco ucu uib uic uii uim uio uiu um- umb umc umi umm umo umu uob uoc uom uoo uuc uum uuu