-th bbb bbc bbd bbe bbh bbk bbn bbo bbs bbt bcb bcc bcd bce bch bck bcn bco bcs bct bdb bdc bdd bde bdh bdk bdo bds bdt be- beb bec bed bee beh bek ben beo bes bet bhb bhc bhd bhe bhh bhk bho bhs bht bkb bkc bke bkk bkn bko bks bkt bnb bnc bnd bne bnk bnn bno bns bnt bob boc bod boe boh bok bon boo bos bot bsb bsc bsd bse bsh bsk bsn bso bss bst btb btc btd bte bth btk btn bto bts btt c-- cbb cbc cbd cbe cbh cbk cbn cbo cbs cbt ccb ccc ccd cce cch cck ccn cco ccs cct cdb cdc cdd cde cdh cdk cdn cdo cds cdt ce- ceb cec ced cee ceh cek cen ceo ces cet ch- chb chc chd che chh chk chn cho chs cht ckb ckc ckd ckh cko cks ckt cn- cnb cnc cnd cne cnh cnn cno cns cnt co- cob coc cod coe coh cok con coo cos cot csb csc csd cse csh csk csn cso css cst ctb ctc ctd cte cth ctk ctn cto cts ctt dbb dbc dbd dbe dbh dbk dbn dbo dbs dbt dcb dcc dcd dce dck dcn dco dcs dct ddb ddc ddd dde ddh ddk ddn ddo dds ddt de- deb dec ded dee deh dek den deo des det dh- dhb dhc dhd dhe dhh dhk dho dhs dht dkb dkc dke dkk dko dks dkt dnb dnc dnd dne dnh dnk dnn dno dns dnt dob doc dod doe doh dok don doo dos dot dsb dsc dsd dse dsh dsk dsn dso dss dst dtb dtc dtd dte dth dtk dtn dto dts dtt ebb ebc ebd ebe ebh ebk ebn ebo ebs ebt ec- ecb ecc ecd ece ech eck ecn eco ecs ect ed- edb edc edd ede edh edk edn edo eds edt eeb eec eed eee eek een eeo ees eet ehb ehc ehd ehe ehh ehn eho ehs eht ekb ekc ekd eke ekh eko eks ekt en- enb enc end ene enh enk enn eno ens ent eo- eob eoc eod eoe eoh eok eon eoo eos eot es- esb esc esd ese esh esk esn eso ess est etb etc etd ete eth etk etn eto ets ett hbb hbc hbd hbe hbh hbk hbn hbo hbs hbt hcb hcc hcd hce hch hck hcn hco hcs hct hdb hdc hdd hde hdh hdk hdn hdo hds hdt he- heb hec hed hee heh hek hen heo hes het hhb hhc hhd hhe hhh hhk hhn hho hhs hht hkb hkd hkh hkk hkn hko hks hkt hnb hnc hnd hne hnh hnk hnn hno hns hnt hob hoc hod hoe hoh hok hon hoo hos hot hsb hsc hsd hse hsh hsk hsn hss hst htb htc htd hte hth htk htn hto hts htt k-t kbb kbc kbd kbe kbh kbk kbn kbo kbs kcb kcc kcd kce kch kck kcn kcs kct kdb kdc kde kdh kdk kdo kds kdt ke- keb kec ked kee keh kek ken keo kes ket khe khh khk khn kho khs kkb kkc kke kkh kkk kkn kks kkt kn- knc knd kne knk knn kno knt kob koc kod koe koh kok kon koo kos kot ksb ksc ksd kse ksh ksk ksn kso kss kst ktb ktc kte kth ktk ktn kto kts ktt nbb nbc nbd nbe nbk nbn nbo nbs nbt ncb ncc ncd nce nch nck ncn nco ncs nct ndb ndc ndd nde ndh ndk ndn ndo nds ndt ne- neb nec ned nee neh nek nen neo nes net nhb nhc nhd nhe nhh nhk nhn nhs nht nkc nke nkk nkn nko nks nkt nnb nnc nne nnh nnk nnn nno nns nnt no- nob noc nod noe noh nok non noo nos not nsb nsc nsd nse nsh nsk nsn nso nss nst ntb ntc ntd nte nth ntk ntn nto nts ntt ob- obb obc obd obe obh obk obn obo obs obt oc- ocb occ ocd och ock ocn oco ocs oct odb odc odd ode odh odn odo ods odt oeb oec oed oee oeh oen oeo oes oet ohc ohd ohe ohh ohn oho ohs oht okb okc okd oke okk oko oks on- onb onc ond one onh onk onn ono ons ont oo- oob ooc ood ooh ook oon ooo oos oot os- osb osc osd ose osh osk osn oso oss ost ot- otb otc otd ote oth otk otn oto ots ott sbb sbc sbd sbe sbh sbk sbn sbo sbs sbt scb scc scd sce sch sck scn sco scs sct sdb sdc sdd sde sdh sdk sdn sdo sds sdt se- seb sec sed see seh sek sen seo ses set sh- shb shc shd she shh shk shn sho shs sht sk- skb skc skd ske skh skk sko sks skt snb snc snd sne snk snn sno sns snt sob soc sod soe soh sok son soo sos sot ss- ssb ssc ssd sse ssh ssk ssn sso sss sst stb stc std ste sth stk stn sto sts stt tbb tbc tbd tbe tbh tbk tbn tbo tbs tbt tcb tcc tcd tce tch tck tcn tco tcs tct tdb tdc tdd tde tdh tdk tdn tdo tds tdt te- teb tec ted tee teh tek ten teo tes tet th- thb thc thd the thh thk thn tho ths tht tkb tkc tke tkk tko tks tkt tnb tnc tnd tne tnh tnk tnn tno tns tnt to- tob toc tod toe toh tok ton too tos tot tsb tsc tsd tse tsh tsk tsn tso tss tst ttb ttc ttd tte tth ttk ttn tto tts ttt