bbb bbc bbe bbh bbl bbm bcb bcc bce bch bcl bcm be- beb bec bee beh bel bem bhb bhc bhe bhh bhl bhm blb blc ble blh bll blm bmb bmc bme bmh bml bmm c-- cbb cbc cbe cbh cbl cbm ccb ccc cce cch ccl ccm ce- ceb cec cee ceh cel cem ch- chb chc che chh chl chm cl- clb clc cle clh cll clm cmb cmc cme cmh cml cmm ebb ebc ebe ebh ebl ebm ec- ecb ecc ece ech ecl ecm eeb eec eee eel eem ehb ehc ehe ehh ehl ehm elb elc ele elh ell elm em- emb emc eme emh eml emm hbb hbc hbe hbh hbl hbm hcb hcc hce hch hcl hcm he- heb hec hee heh hel hem hhb hhc hhe hhh hhl hhm hlb hlc hle hlh hll hlm hmb hmc hme hmh hml hmm lbb lbc lbe lbh lbl lbm lcb lcc lce lch lcl lcm leb lec lee leh lel lem lhb lhc lhh llb llc lle lll llm lmb lmc lme lmh lml lmm mbb mbc mbe mbh mbl mbm mc- mcb mcc mce mch mcl mcm meb mec mee meh mel mem mhc mhh mhl mhm mlb mlc mle mlh mll mlm mmb mmc mme mmh mml mmm