bbb bbc bbe bbh bbk bbn bbs bcb bcc bce bch bck bcn bcs be- beb bec bee beh bek ben bes bhb bhc bhe bhh bhk bhs bkb bkc bke bkk bkn bks bnb bnc bne bnk bnn bns bsb bsc bse bsh bsk bsn bss c-- cbb cbc cbe cbh cbk cbn cbs ccb ccc cce cch cck ccn ccs ce- ceb cec cee ceh cek cen ces ch- chb chc che chh chk chn chs ckb ckc ckh cks cn- cnb cnc cne cnh cnn cns csb csc cse csh csk csn css ebb ebc ebe ebh ebk ebn ebs ec- ecb ecc ece ech eck ecn ecs eeb eec eee eek een ees ehb ehc ehe ehh ehn ehs ekb ekc eke ekh eks en- enb enc ene enh enk enn ens es- esb esc ese esh esk esn ess hbb hbc hbe hbh hbk hbn hbs hcb hcc hce hch hck hcn hcs he- heb hec hee heh hek hen hes hhb hhc hhe hhh hhk hhn hhs hkb hkh hkk hkn hks hnb hnc hne hnh hnk hnn hns hsb hsc hse hsh hsk hsn hss kbb kbc kbe kbh kbk kbn kbs kcb kcc kce kch kck kcn kcs ke- keb kec kee keh kek ken kes khe khh khk khn khs kkb kkc kke kkh kkk kkn kks kn- knc kne knk knn ksb ksc kse ksh ksk ksn kss nbb nbc nbe nbk nbn nbs ncb ncc nce nch nck ncn ncs ne- neb nec nee neh nek nen nes nhb nhc nhe nhh nhk nhn nhs nkc nke nkk nkn nks nnb nnc nne nnh nnk nnn nns nsb nsc nse nsh nsk nsn nss sbb sbc sbe sbh sbk sbn sbs scb scc sce sch sck scn scs se- seb sec see seh sek sen ses sh- shb shc she shh shk shn shs sk- skb skc ske skh skk sks snb snc sne snk snn sns ss- ssb ssc sse ssh ssk ssn sss