-ic b-u bbb bbc bbe bbi bbm bbu bcb bcc bce bci bcm bcu be- beb bec bee bei bem beu bi- bib bic bie bii bim biu bmb bmc bme bmi bmm bmu bub buc bue bui bum buu c-- cbb cbc cbe cbi cbm cbu ccb ccc cce cci ccm ccu ce- ceb cec cee cei cem ceu ci- cib cic cie cii cim ciu cmb cmc cme cmi cmm cmu cub cuc cue cui cum cuu ebb ebc ebe ebi ebm ebu ec- ecb ecc ece eci ecm ecu eeb eec eee eem eib eic eie eii eim eiu em- emb emc eme emi emm emu eu- eub euc eue eui ibb ibc ibe ibi ibm ibu icb icc ice ici icm icu ie- iec iee iei iem iib iic iie iii iim iiu im- imb imc ime imi imm imu iu- iub iuc iue iui ium mbb mbc mbe mbi mbm mbu mc- mcb mcc mce mci mcm mcu meb mec mee mei mem meu mi- mib mic mie mii mim miu mmb mmc mme mmi mmm mmu mub muc mue mui mum muu ubb ubc ube ubi ubu ucb ucc uce uci ucm ucu ueb uec uee uei uem uib uic uie uii uim uiu um- umb umc ume umi umm umu uuc uue uum uuu