-ic bbb bbc bbi bbm bbs bcb bcc bci bcm bcs bi- bib bic bii bim bis bmb bmc bmi bmm bms bsb bsc bsi bsm bss c-- cbb cbc cbi cbm cbs ccb ccc cci ccm ccs ci- cib cic cii cim cis cmb cmc cmi cmm cms csb csc csi csm css ibb ibc ibi ibm ibs icb icc ici icm ics iib iic iii iim iis im- imb imc imi imm ims is- isb isc isi ism iss mbb mbc mbi mbm mbs mc- mcb mcc mci mcm mcs mi- mib mic mii mim mis mmb mmc mmi mmm mms msb msc msi msm mss sbb sbc sbi sbm sbs scb scc sci scm scs sib sic sii sim sis smb smc smi smm sms ss- ssb ssc ssi ssm sss