-ic bbb bbc bbh bbi bbk bbl bbs bcb bcc bch bci bck bcl bcs bhb bhc bhh bhi bhk bhl bhs bi- bib bic bih bii bik bil bis bkb bkc bkk bkl bks blb blc blh bli blk bll bls bsb bsc bsh bsi bsk bsl bss c-- cbb cbc cbh cbi cbk cbl cbs ccb ccc cch cci cck ccl ccs ch- chb chc chh chi chk chl chs ci- cib cic cih cii cik cil cis ckb ckc ckh cki cks cl- clb clc clh cli clk cll cls csb csc csh csi csk csl css h-i hbb hbc hbh hbi hbk hbl hbs hcb hcc hch hci hck hcl hcs hhb hhc hhh hhi hhk hhl hhs hib hic hih hii hik hil his hkb hkh hki hkk hkl hks hlb hlc hlh hli hll hls hsb hsc hsh hsi hsk hsl hss ibb ibc ibh ibi ibk ibl ibs icb icc ich ici ick icl ics ihb ihc ihh ihi ihk ihl ihs iib iic iih iii iil iis ikb ikc iki ikk ikl iks il- ilb ilc ilh ili ilk ill ils is- isb isc ish isi isk isl iss kbb kbc kbh kbi kbk kbl kbs kcb kcc kch kci kck kcl kcs khh khi khk khs kib kic kih kii kik kil kis kkb kkc kkh kki kkk kkl kks kl- klb klc klh kli kls ksb ksc ksh ksi ksk ksl kss lbb lbc lbh lbi lbk lbl lbs lcb lcc lch lci lck lcl lcs lhb lhc lhh lhi lhk lhs lib lic lih lii lik lil lis lkb lkh lkl lks llb llc lli llk lll lls lsb lsc lsh lsi lsk lsl lss sbb sbc sbh sbi sbk sbl sbs scb scc sch sci sck scl scs sh- shb shc shh shi shk shl shs sib sic sih sii sik sil sis sk- skb skc skh ski skk skl sks slb slc slh sli slk sll sls ss- ssb ssc ssh ssi ssk ssl sss