-er -ic c-- ccc cce ccf cci cck ccn cco ccr ccs cct ce- cec cee cef cei cek cen ceo cer ces cet cfc cfe cff cfi cfk cfn cfo cfr cfs cft ci- cic cie cif cii cik cin cio cir cis cit ckc cki cko cks ckt cn- cnc cne cnf cni cnn cno cnr cns cnt co- coc coe cof coi cok con coo cor cos cot crc cre crf cri crk crn cro crr crs crt csc cse csf csi csk csn cso csr css cst ctc cte ctf cti ctk ctn cto ctr cts ctt ec- ecc ece ecf eci eck ecn eco ecr ecs ect eec eee eef eek een eeo eer ees eet ef- efc efe eff efi efo efr efs eft eic eie eif eii eik ein eio eir eis eit ekc eke ekf eki eko ekr eks ekt en- enc ene enf eni enk enn eno enr ens ent eo- eoc eoe eof eoi eok eon eoo eor eos eot erc ere erf eri erk ern ero err ers ert es- esc ese esf esi esk esn eso esr ess est etc ete etf eti etk etn eto etr ets ett fcc fce fcf fci fck fcn fco fcr fcs fct fec fee fef fei fek fen feo fer fes fet ffc ffe fff ffi ffk ffn ffo ffr ffs fft fic fie fif fii fik fin fir fis fit fkc fkf fki fkk fkt fnc fne fnf fni fnk fnn fnr fns fnt foc foe fof foi fok fon foo for fos fot frc fre frf fri frk frn fro frr frs frt fsc fse fsf fsi fsk fsn fso fsr fss fst ftc fte ftf fti ftk ftn fto ftr fts ftt i-f icc ice icf ici ick icn ico icr ics ict ie- iec iee ief iei iek ien ier ies iet ifc ife iff ifi ifn ifo ifr ifs ift iic iie iif iii iin iio iir iis iit ikc ike ikf iki ikk iko ikr iks ikt in- inc ine inf ini ink inn ino inr ins int io- ioc ioe iof ioi ion ioo ior ios iot ir- irc ire irf iri irk irn iro irr irs irt is- isc ise isf isi isk isn iso isr iss ist itc ite itf iti itk itn ito its itt k-t kcc kce kci kck kcn kcr kcs kct ke- kec kee kef kei kek ken keo ker kes ket kfc kff kfi kfo kfs kic kie kif kii kik kin kio kir kis kit kkc kke kki kkk kkn kkr kks kkt kn- knc kne knf kni knk knn kno knr knt koc koe kof koi kok kon koo kor kos kot krc krf kri krk krn kro krr krs krt ksc kse ksf ksi ksk ksn kso ksr kss kst ktc kte ktf ktk ktn kto ktr kts ktt n-i ncc nce ncf nci nck ncn nco ncr ncs nct ne- nec nee nef nei nek nen neo ner nes net nfc nfe nff nfi nfk nfn nfo nfr nfs nft nic nie nif nii nik nin nio nir nis nit nkc nke nkf nki nkk nkn nko nkr nks nkt nnc nne nnf nni nnk nnn nno nns nnt no- noc noe nof noi nok non noo nor nos not nrc nre nrf nri nrk nrn nro nrr nrs nrt nsc nse nsf nsi nsk nsn nso nsr nss nst ntc nte ntf nti ntk ntn nto ntr nts ntt o-i oc- occ ocf oci ock ocn oco ocr ocs oct oec oee oef oei oen oeo oer oes oet of- ofc ofe off ofi ofn ofo ofr ofs oft oic oie oif oii oik oin oio oir ois oit okc oke oki okk oko okr oks on- onc one onf oni onk onn ono onr ons ont oo- ooc oof ooi ook oon ooo oor oos oot or- orc ore orf ori ork orn oro orr ors ort os- osc ose osf osi osk osn oso osr oss ost ot- otc ote otf oti otk otn oto otr ots ott rcc rce rcf rci rcn rco rcr rcs rct re- rec ree ref rei rek ren reo rer res ret rfc rfe rff rfi rfk rfn rfo rfr rfs rft ric rie rif rii rik rin rio rir ris rit rkc rke rkf rkk rko rks rkt rnc rni rnn rno rnr rns rnt roc roe rof roi rok ron roo ror ros rot rrc rrf rri rrk rrn rrr rrs rrt rsc rse rsf rsi rsk rsn rso rsr rss rst rtc rte rtf rti rtk rtn rto rtr rts rtt scc sce scf sci sck scn sco scr scs sct se- sec see sef sei sek sen seo ser ses set sfc sfe sff sfi sfk sfn sfo sfr sfs sft sic sie sif sii sik sin sio sir sis sit sk- skc ske skf ski skk sko skr sks skt snc sne snf sni snk snn sno snr sns snt soc soe sof soi sok son soo sor sos sot sr- src sre srf sri srk srn sro srr srs srt ss- ssc sse ssf ssi ssk ssn sso ssr sss sst stc ste stf sti stk stn sto str sts stt tcc tce tcf tci tck tcn tco tcr tcs tct te- tec tee tef tei tek ten teo ter tes tet tfc tfe tff tfi tfk tfn tfo tfr tfs tft tic tie tif tii tik tin tio tir tis tit tkc tke tkk tko tkr tks tkt tnc tne tnf tni tnk tnn tno tnr tns tnt to- toc toe tof toi tok ton too tor tos tot trc tre trf tri trk trn tro trr trs trt tsc tse tsf tsi tsk tsn tso tsr tss tst ttc tte ttf tti ttk ttn tto ttr tts ttt