-er -ic bbb bbc bbd bbe bbg bbi bbk bbn bbo bbr bbs bbt bcb bcc bcd bce bcg bci bck bcn bco bcr bcs bct bdb bdc bdd bde bdg bdi bdk bdo bdr bds bdt be- beb bec bed bee beg bei bek ben beo ber bes bet bgb bgc bgd bge bgg bgi bgk bgn bgo bgr bgs bgt bi- bib bic bid bie big bii bik bin bio bir bis bit bkb bkc bke bkg bkk bkn bko bkr bks bkt bnb bnc bnd bne bng bni bnk bnn bno bnr bns bnt bob boc bod boe bog boi bok bon boo bor bos bot brb brd bre brg bri brk brn bro brr brs brt bsb bsc bsd bse bsg bsi bsk bsn bso bsr bss bst btb btc btd bte btg bti btk btn bto btr bts btt c-- cbb cbc cbd cbe cbg cbi cbk cbn cbo cbr cbs cbt ccb ccc ccd cce ccg cci cck ccn cco ccr ccs cct cdb cdc cdd cde cdg cdi cdk cdn cdo cdr cds cdt ce- ceb cec ced cee ceg cei cek cen ceo cer ces cet cgb cgc cgd cge cgg cgi cgn cgo cgr cgs cgt ci- cib cic cid cie cig cii cik cin cio cir cis cit ckb ckc ckd cki cko cks ckt cn- cnb cnc cnd cne cng cni cnn cno cnr cns cnt co- cob coc cod coe cog coi cok con coo cor cos cot crb crc crd cre crg cri crk crn cro crr crs crt csb csc csd cse csg csi csk csn cso csr css cst ctb ctc ctd cte ctg cti ctk ctn cto ctr cts ctt dbb dbc dbd dbe dbg dbi dbk dbn dbo dbr dbs dbt dcb dcc dcd dce dcg dci dck dcn dco dcr dcs dct ddb ddc ddd dde ddg ddi ddk ddn ddo ddr dds ddt de- deb dec ded dee deg dei dek den deo der des det dgc dgd dge dgg dgi dgk dgn dgr dgs dgt di- dib dic did die dig dii dik din dio dir dis dit dkb dkc dke dkg dki dkk dko dkr dks dkt dnb dnc dnd dne dng dni dnk dnn dno dnr dns dnt dob doc dod doe dog doi dok don doo dor dos dot drb drc drd dre drg dri drk drn dro drr drs drt dsb dsc dsd dse dsg dsi dsk dsn dso dsr dss dst dtb dtc dtd dte dtg dti dtk dtn dto dtr dts dtt ebb ebc ebd ebe ebg ebi ebk ebn ebo ebr ebs ebt ec- ecb ecc ecd ece ecg eci eck ecn eco ecr ecs ect ed- edb edc edd ede edg edi edk edn edo edr eds edt eeb eec eed eee eeg eek een eeo eer ees eet egb egc egd ege egg egi egn ego egr egs egt eib eic eid eie eig eii eik ein eio eir eis eit ekb ekc ekd eke ekg eki eko ekr eks ekt en- enb enc end ene eng eni enk enn eno enr ens ent eo- eob eoc eod eoe eog eoi eok eon eoo eor eos eot erb erc erd ere erg eri erk ern ero err ers ert es- esb esc esd ese esg esi esk esn eso esr ess est etb etc etd ete etg eti etk etn eto etr ets ett g-d gbc gbd gbe gbg gbi gbk gbn gbo gbr gbs gbt gcb gcc gcd gce gcg gci gck gcn gco gcr gcs gct gdb gdc gdd gde gdi gdk gdn gdo gdr gds gdt ge- geb gec ged gee geg gei gek gen geo ger ges get ggb ggc ggd ggg ggi ggn ggo ggr ggs ggt gib gic gid gie gig gii gik gin gio gir gis git gkb gkd gkn gko gks gkt gnb gnc gnd gne gni gnn gno gnr gns gnt gob goc god goe gog goi gok gon goo gor gos got grb grc grd gre grg gri grk grn gro grr grs grt gsb gsc gsd gse gsg gsi gsk gsn gso gsr gss gst gtb gtc gtd gte gtg gti gtk gtn gto gtr gts gtt i-d ibb ibc ibd ibe ibg ibi ibk ibn ibo ibr ibs ibt icb icc icd ice icg ici ick icn ico icr ics ict idb idc idd ide idg idi idk idn ido idr ids idt ie- iec ied iee ieg iei iek ien ier ies iet igb igc igd ige igg igi igk ign igo igr igs igt iib iic iid iie iii iin iio iir iis iit ikb ikc ike iki ikk iko ikr iks ikt in- inb inc ind ine ing ini ink inn ino inr ins int io- iob ioc iod ioe iog ioi ion ioo ior ios iot ir- irb irc ird ire irg iri irk irn iro irr irs irt is- isb isc isd ise isg isi isk isn iso isr iss ist itb itc itd ite itg iti itk itn ito its itt k-t kbb kbc kbd kbe kbi kbk kbn kbo kbr kbs kcb kcc kcd kce kcg kci kck kcn kcr kcs kct kdb kdc kde kdg kdk kdo kdr kds kdt ke- keb kec ked kee keg kei kek ken keo ker kes ket kgb kgc kgd kgi kgo kgs kib kic kid kie kig kii kik kin kio kir kis kit kkb kkc kke kki kkk kkn kkr kks kkt kn- knc knd kne kng kni knk knn kno knr knt kob koc kod koe kog koi kok kon koo kor kos kot krc krd krg kri krk krn kro krr krs krt ksb ksc ksd kse ksg ksi ksk ksn kso ksr kss kst ktb ktc kte ktg ktk ktn kto ktr kts ktt n-i nbb nbc nbd nbe nbg nbi nbk nbn nbo nbr nbs nbt ncb ncc ncd nce ncg nci nck ncn nco ncr ncs nct ndb