bbb bbc bbe bbh bbk bbm bcb bcc bce bch bck bcm be- beb bec bee beh bek bem bhb bhc bhe bhh bhk bhm bkb bkc bke bkk bkm bmb bmc bme bmh bmk bmm c-- cbb cbc cbe cbh cbk cbm ccb ccc cce cch cck ccm ce- ceb cec cee ceh cek cem ch- chb chc che chh chk chm ckb ckc ckh ckm cmb cmc cme cmh cmk cmm ebb ebc ebe ebh ebk ebm ec- ecb ecc ece ech eck ecm eeb eec eee eek eem ehb ehc ehe ehh ehm ekb ekc eke ekh em- emb emc eme emh emk emm hbb hbc hbe hbh hbk hbm hcb hcc hce hch hck hcm he- heb hec hee heh hek hem hhb hhc hhe hhh hhk hhm hkb hkh hkk hkm hmb hmc hme hmh hmk hmm kbb kbc kbe kbh kbk kbm kcb kcc kce kch kck kcm ke- keb kec kee keh kek kem khe khh khk khm kkb kkc kke kkh kkk kkm kmb kmc kme kmh kmk kmm mbb mbc mbe mbh mbk mbm mc- mcb mcc mce mch mck mcm meb mec mee meh mek mem mhc mhh mhk mhm mkb mkc mke mkh mkk mkm mmb mmc mme mmh mmk mmm