-ic bbb bbc bbe bbh bbi bbk bcb bcc bce bch bci bck be- beb bec bee beh bei bek bhb bhc bhe bhh bhi bhk bi- bib bic bie bih bii bik bkb bkc bke bkk c-- cbb cbc cbe cbh cbi cbk ccb ccc cce cch cci cck ce- ceb cec cee ceh cei cek ch- chb chc che chh chi chk ci- cib cic cie cih cii cik ckb ckc ckh cki ebb ebc ebe ebh ebi ebk ec- ecb ecc ece ech eci eck eeb eec eee eek ehb ehc ehe ehh ehi eib eic eie eii eik ekb ekc eke ekh eki h-i hbb hbc hbe hbh hbi hbk hcb hcc hce hch hci hck he- heb hec hee heh hei hek hhb hhc hhe hhh hhi hhk hib hic hie hih hii hik hkb hkh hki hkk ibb ibc ibe ibh ibi ibk icb icc ice ich ici ick ie- iec iee iei iek ihb ihc ihe ihh ihi ihk iib iic iie iih iii ikb ikc ike iki ikk kbb kbc kbe kbh kbi kbk kcb kcc kce kch kci kck ke- keb kec kee keh kei kek khe khh khi khk kib kic kie kih kii kik kkb kkc kke kkh kki kkk