-er -ic bbb bbc bbe bbf bbi bbk bbn bbo bbr bbs bbt bcb bcc bce bcf bci bck bcn bco bcr bcs bct be- beb bec bee bef bei bek ben beo ber bes bet bfb bfc bfe bff bfi bfn bfo bfr bfs bft bi- bib bic bie bif bii bik bin bio bir bis bit bkb bkc bke bkf bkk bkn bko bkr bks bkt bnb bnc bne bnf bni bnk bnn bno bnr bns bnt bob boc boe bof boi bok bon boo bor bos bot brb bre brf bri brk brn bro brr brs brt bsb bsc bse bsf bsi bsk bsn bso bsr bss bst btb btc bte btf bti btk btn bto btr bts btt c-- cbb cbc cbe cbf cbi cbk cbn cbo cbr cbs cbt ccb ccc cce ccf cci cck ccn cco ccr ccs cct ce- ceb cec cee cef cei cek cen ceo cer ces cet cfb cfc cfe cff cfi cfk cfn cfo cfr cfs cft ci- cib cic cie cif cii cik cin cio cir cis cit ckb ckc cki cko cks ckt cn- cnb cnc cne cnf cni cnn cno cnr cns cnt co- cob coc coe cof coi cok con coo cor cos cot crb crc cre crf cri crk crn cro crr crs crt csb csc cse csf csi csk csn cso csr css cst ctb ctc cte ctf cti ctk ctn cto ctr cts ctt ebb ebc ebe ebf ebi ebk ebn ebo ebr ebs ebt ec- ecb ecc ece ecf eci eck ecn eco ecr ecs ect eeb eec eee eef eek een eeo eer ees eet ef- efb efc efe eff efi efo efr efs eft eib eic eie eif eii eik ein eio eir eis eit ekb ekc eke ekf eki eko ekr eks ekt en- enb enc ene enf eni enk enn eno enr ens ent eo- eob eoc eoe eof eoi eok eon eoo eor eos eot erb erc ere erf eri erk ern ero err ers ert es- esb esc ese esf esi esk esn eso esr ess est etb etc ete etf eti etk etn eto etr ets ett fbb fbc fbe fbf fbi fbk fbn fbo fbr fbs fbt fcb fcc fce fcf fci fck fcn fco fcr fcs fct feb fec fee fef fei fek fen feo fer fes fet ffc ffe fff ffi ffk ffn ffo ffr ffs fft fib fic fie fif fii fik fin fir fis fit fkb fkc fkf fki fkk fkt fnb fnc fne fnf fni fnk fnn fnr fns fnt fob foc foe fof foi fok fon foo for fos fot frb frc fre frf fri frk frn fro frr frs frt fsb fsc fse fsf fsi fsk fsn fso fsr fss fst ftb ftc fte ftf fti ftk ftn fto ftr fts ftt i-f ibb ibc ibe ibf ibi ibk ibn ibo ibr ibs ibt icb icc ice icf ici ick icn ico icr ics ict ie- iec iee ief iei iek ien ier ies iet ifb ifc ife iff ifi ifn ifo ifr ifs ift iib iic iie iif iii iin iio iir iis iit ikb ikc ike ikf iki ikk iko ikr iks ikt in- inb inc ine inf ini ink inn ino inr ins int io- iob ioc ioe iof ioi ion ioo ior ios iot ir- irb irc ire irf iri irk irn iro irr irs irt is- isb isc ise isf isi isk isn iso isr iss ist itb itc ite itf iti itk itn ito its itt k-t kbb kbc kbe kbf kbi kbk kbn kbo kbr kbs kcb kcc kce kci kck kcn kcr kcs kct ke- keb kec kee kef kei kek ken keo ker kes ket kfc kff kfi kfo kfs kib kic kie kif kii kik kin kio kir kis kit kkb kkc kke kki kkk kkn kkr kks kkt kn- knc kne knf kni knk knn kno knr knt kob koc koe kof koi kok kon koo kor kos kot krc krf kri krk krn kro krr krs krt ksb ksc kse ksf ksi ksk ksn kso ksr kss kst ktb ktc kte ktf ktk ktn kto ktr kts ktt n-i nbb nbc nbe nbf nbi nbk nbn nbo nbr nbs nbt ncb ncc nce ncf nci nck ncn nco ncr ncs nct ne- neb nec nee nef nei nek nen neo ner nes net nfb nfc nfe nff nfi nfk nfn nfo nfr nfs nft nib nic nie nif nii nik nin nio nir nis nit nkc nke nkf nki nkk nkn nko nkr nks nkt nnb nnc nne nnf nni nnk nnn nno nns nnt no- nob noc noe nof noi nok non noo nor nos not nrb nrc nre nrf nri nrk nrn nro nrr nrs nrt nsb nsc nse nsf nsi nsk nsn nso nsr nss nst ntb ntc nte ntf nti ntk ntn nto ntr nts ntt o-i ob- obb obc obe obf obi obk obn obo obr obs obt oc- ocb occ ocf oci ock ocn oco ocr ocs oct oeb oec oee oef oei oen oeo oer oes oet of- ofb ofc ofe off ofi ofn ofo ofr ofs oft oib oic oie oif oii oik oin oio oir ois oit okb okc oke oki okk oko okr oks on- onb onc one onf oni onk onn ono onr ons ont oo- oob ooc oof ooi ook oon ooo oor oos oot or- orb orc ore orf ori ork orn oro orr ors ort os- osb osc ose osf osi osk osn oso osr oss ost ot- otb otc ote otf oti otk otn oto otr ots ott rbb rbc rbe rbf rbi rbk rbn rbo rbr rbs rbt rcb rcc rce rcf rci rcn rco rcr rcs rct re- reb rec ree ref rei rek ren reo rer res ret rfb rfc rfe rff rfi rfk rfn rfo rfr rfs rft rib ric rie rif rii rik rin