-ic bbb bbc bbd bbe bbi bbn bbs bbt bcb bcc bcd bce bci bcn bcs bct bdb bdc bdd bde bdi bds bdt be- beb bec bed bee bei ben bes bet bi- bib bic bid bie bii bin bis bit bnb bnc bnd bne bni bnn bns bnt bsb bsc bsd bse bsi bsn bss bst btb btc btd bte bti btn bts btt c-- cbb cbc cbd cbe cbi cbn cbs cbt ccb ccc ccd cce cci ccn ccs cct cdb cdc cdd cde cdi cdn cds cdt ce- ceb cec ced cee cei cen ces cet ci- cib cic cid cie cii cin cis cit cn- cnb cnc cnd cne cni cnn cns cnt csb csc csd cse csi csn css cst ctb ctc ctd cte cti ctn cts ctt dbb dbc dbd dbe dbi dbn dbs dbt dcb dcc dcd dce dci dcn dcs dct ddb ddc ddd dde ddi ddn dds ddt de- deb dec ded dee dei den des det di- dib dic did die dii din dis dit dnb dnc dnd dne dni dnn dns dnt dsb dsc dsd dse dsi dsn dss dst dtb dtc dtd dte dti dtn dts dtt ebb ebc ebd ebe ebi ebn ebs ebt ec- ecb ecc ecd ece eci ecn ecs ect ed- edb edc edd ede edi edn eds edt eeb eec eed eee een ees eet eib eic eid eie eii ein eis eit en- enb enc end ene eni enn ens ent es- esb esc esd ese esi esn ess est etb etc etd ete eti etn ets ett i-d ibb ibc ibd ibe ibi ibn ibs ibt icb icc icd ice ici icn ics ict idb idc idd ide idi idn ids idt ie- iec ied iee iei ien ies iet iib iic iid iie iii iin iis iit in- inb inc ind ine ini inn ins int is- isb isc isd ise isi isn iss ist itb itc itd ite iti itn its itt n-i nbb nbc nbd nbe nbi nbn nbs nbt ncb ncc ncd nce nci ncn ncs nct ndb ndc ndd nde ndi ndn nds ndt ne- neb nec ned nee nei nen nes net nib nic nid nie nii nin nis nit nnb nnc nne nni nnn nns nnt nsb nsc nsd nse nsi nsn nss nst ntb ntc ntd nte nti ntn nts ntt sbb sbc sbd sbe sbi sbn sbs sbt scb scc scd sce sci scn scs sct sdb sdc sdd sde sdi sdn sds sdt se- seb sec sed see sei sen ses set sib sic sid sie sii sin sis sit snb snc snd sne sni snn sns snt ss- ssb ssc ssd sse ssi ssn sss sst stb stc std ste sti stn sts stt tbb tbc tbd tbe tbi tbn tbs tbt tcb tcc tcd tce tci tcn tcs tct tdb tdc tdd tde tdi tdn tds tdt te- teb tec ted tee tei ten tes tet tib tic tid tie tii tin tis tit tnb tnc tnd tne tni tnn tns tnt tsb tsc tsd tse tsi tsn tss tst ttb ttc ttd tte tti ttn tts ttt