-ic bbb bbc bbh bbi bbs bcb bcc bch bci bcs bhb bhc bhh bhi bhs bi- bib bic bih bii bis bsb bsc bsh bsi bss c-- cbb cbc cbh cbi cbs ccb ccc cch cci ccs ch- chb chc chh chi chs ci- cib cic cih cii cis csb csc csh csi css h-i hbb hbc hbh hbi hbs hcb hcc hch hci hcs hhb hhc hhh hhi hhs hib hic hih hii his hsb hsc hsh hsi hss ibb ibc ibh ibi ibs icb icc ich ici ics ihb ihc ihh ihi ihs iib iic iih iii iis is- isb isc ish isi iss sbb sbc sbh sbi sbs scb scc sch sci scs sh- shb shc shh shi shs sib sic sih sii sis ss- ssb ssc ssh ssi sss