-th bbb bbc bbe bbh bbn bbs bbt bcb bcc bce bch bcn bcs bct be- beb bec bee beh ben bes bet bhb bhc bhe bhh bhs bht bnb bnc bne bnn bns bnt bsb bsc bse bsh bsn bss bst btb btc bte bth btn bts btt c-- cbb cbc cbe cbh cbn cbs cbt ccb ccc cce cch ccn ccs cct ce- ceb cec cee ceh cen ces cet ch- chb chc che chh chn chs cht cn- cnb cnc cne cnh cnn cns cnt csb csc cse csh csn css cst ctb ctc cte cth ctn cts ctt ebb ebc ebe ebh ebn ebs ebt ec- ecb ecc ece ech ecn ecs ect eeb eec eee een ees eet ehb ehc ehe ehh ehn ehs eht en- enb enc ene enh enn ens ent es- esb esc ese esh esn ess est etb etc ete eth etn ets ett hbb hbc hbe hbh hbn hbs hbt hcb hcc hce hch hcn hcs hct he- heb hec hee heh hen hes het hhb hhc hhe hhh hhn hhs hht hnb hnc hne hnh hnn hns hnt hsb hsc hse hsh hsn hss hst htb htc hte hth htn hts htt nbb nbc nbe nbn nbs nbt ncb ncc nce nch ncn ncs nct ne- neb nec nee neh nen nes net nhb nhc nhe nhh nhn nhs nht nnb nnc nne nnh nnn nns nnt nsb nsc nse nsh nsn nss nst ntb ntc nte nth ntn nts ntt sbb sbc sbe sbh sbn sbs sbt scb scc sce sch scn scs sct se- seb sec see seh sen ses set sh- shb shc she shh shn shs sht snb snc sne snn sns snt ss- ssb ssc sse ssh ssn sss sst stb stc ste sth stn sts stt tbb tbc tbe tbh tbn tbs tbt tcb tcc tce tch tcn tcs tct te- teb tec tee teh ten tes tet th- thb thc the thh thn ths tht tnb tnc tne tnh tnn tns tnt tsb tsc tse tsh tsn tss tst ttb ttc tte tth ttn tts ttt