bbb bbc bbe bbh bbn bcb bcc bce bch bcn be- beb bec bee beh ben bhb bhc bhe bhh bnb bnc bne bnn c-- cbb cbc cbe cbh cbn ccb ccc cce cch ccn ce- ceb cec cee ceh cen ch- chb chc che chh chn cn- cnb cnc cne cnh cnn ebb ebc ebe ebh ebn ec- ecb ecc ece ech ecn eeb eec eee een ehb ehc ehe ehh ehn en- enb enc ene enh enn hbb hbc hbe hbh hbn hcb hcc hce hch hcn he- heb hec hee heh hen hhb hhc hhe hhh hhn hnb hnc hne hnh hnn nbb nbc nbe nbn ncb ncc nce nch ncn ne- neb nec nee neh nen nhb nhc nhe nhh nhn nnb nnc nne nnh nnn