-er c-- ccc cce cck cco ccr ccs cct ce- cec cee cek ceo cer ces cet ckc cko cks ckt co- coc coe cok coo cor cos cot crc cre crk cro crr crs crt csc cse csk cso csr css cst ctc cte ctk cto ctr cts ctt ec- ecc ece eck eco ecr ecs ect eec eee eek eeo eer ees eet ekc eke eko ekr eks ekt eo- eoc eoe eok eoo eor eos eot erc ere erk ero err ers ert es- esc ese esk eso esr ess est etc ete etk eto etr ets ett k-t kcc kce kck kcr kcs kct ke- kec kee kek keo ker kes ket kkc kke kkk kkr kks kkt koc koe kok koo kor kos kot krc krk kro krr krs krt ksc kse ksk kso ksr kss kst ktc kte ktk kto ktr kts ktt oc- occ ock oco ocr ocs oct oec oee oeo oer oes oet okc oke okk oko okr oks oo- ooc ook ooo oor oos oot or- orc ore ork oro orr ors ort os- osc ose osk oso osr oss ost ot- otc ote otk oto otr ots ott rcc rce rco rcr rcs rct re- rec ree rek reo rer res ret rkc rke rkk rko rks rkt roc roe rok roo ror ros rot rrc rrk rrr rrs rrt rsc rse rsk rso rsr rss rst rtc rte rtk rto rtr rts rtt scc sce sck sco scr scs sct se- sec see sek seo ser ses set sk- skc ske skk sko skr sks skt soc soe sok soo sor sos sot sr- src sre srk sro srr srs srt ss- ssc sse ssk sso ssr sss sst stc ste stk sto str sts stt tcc tce tck tco tcr tcs tct te- tec tee tek teo ter tes tet tkc tke tkk tko tkr tks tkt to- toc toe tok too tor tos tot trc tre trk tro trr trs trt tsc tse tsk tso tsr tss tst ttc tte ttk tto ttr tts ttt

-ose cccc cccs ccee ccoc ccrc ccre ccrs ccrt ccss ccst cctc cctt cec- cece ceco cecs cect ceec cees ceke ceor ceos cer- cerc cere cero cers cert cesc cese cesr cess cest cet- cete ceto cets ckck ckco ckcs cker ckoc ckoo ckor ckos ckot ckrc ckso ckst ckts coce cock coco coct coes cok- coke coko cook coos coot cor- corc core cork coro corr cors cort cosc cose coso coss cost cotc cote coto cots cott crcc crce crcr cre- crec cree creo cres cret crkc croc croe crok croo cror crot crrt crss crst crtc crts cscc csce csco cscr cscs csec csee cser cset csks csor csos csot csrc csrs csse cssr cstc csto cstr csts ctec ctor ctos ctot ctrc ctrs ctsc ctss ctts eccc ecce ecco ecct eces ecko ecks eco- ecos ecot ecrc ecrr ecsc ecse ecss ect- ectc ecto ects eecs eeee eees eeke eeks eeoc eerc eero eers eese eesk eetc eete eets ekco ekek eker ekes eket ekos eoes eore eost eotc eoto eots ercc erce erec erer eres eret erke erks eroc eroe eroo eros errc erre erro errs erse erso erst erts esce esco escr escs esee esek eseo eser eses eset eske esko esks eso- esok esos esse esso esst estc este esto estr ests etcc etco etcs etec etee eter etes etoe etok etos etre etro ette etto k-os kccc kcck kccr kcct kcec kcee kceo kcet kckc kckk kcko kckr kcoe kcor kcos kcot kcrc kcro kcrr kcrs kcrt kcsc kcse kcsr kcss kcst kctc kcte kcto keck keco kecr keek keer kees keet kekc keke keko keks keok keos ker- kerc kere kerk kero kerr kers kert kesc kesk keso kesr kess kest ket- ketc kete ketk keto ketr kets kett kkck kkco kkcr kkcs kkct kkkk kkoo kkor kkot kkrc kkre kkrk kkro kkrr kkrs kkrt kkse kksr kkss kkst kktc kktk kkts kock kocs koct koes kokc koke kokk koko kokr koks kooc kook kooo koor koos koot korc kore kork koro korr kors kort kos- kosc kose koso kosr koss kost kotc kote kotk koto kotr kots kott krcc krce krco krcs krec kree krek kreo kres kret krkc krke krkk krko krkr krks kroc kroe krok kroo kror kros krrc krre krrk krro krrr krrs krrt krsc krse krsk krsr krss krst krtc krtk krto krtr krts ksce ksck ksco kscr kscs ksec ksee ksek kseo kser kset kske kskk ksko kskr ksks ksoc ksok ksoo ksor ksos ksro ksrr ksrs ksrt ksse ksso kssr ksss ksst kstc kste kstk ksto kstr ksts kstt ktcc ktce ktck ktco ktcr ktcs ktec ktee ktek ktkc ktke ktkk ktko ktkr ktks ktkt ktoc ktoe ktok ktoo ktor ktot ktrc ktre ktrk ktro ktrr ktrs ktrt ktsc ktso ktsr ktst kttc kttk ktto kttr ktts kttt o-eo occc occt oce ocee ocet ocke ocks ocos ocre ocro ocrr ocrs oct- octe octo octs oec- oecc oeec oere oers oese oest oker okes oket okko okok okor okot okre okro okso okto oocr ooer ooes oooo ooos oore oort oose oost oots orce orco orcs ore- orec orek oreo orer ores orke orko oro- oroe orok oror oros orot orro orrs orse orsk orso ortc orte orto orts oscc osce osco osec osee osek oser oses oset osoo osor osos osro osse osso ostc oste ostr osts otee oter otes oto- otoe otok otoo otor otos otre otro otrs otse otso otte otto otts rccc rccs rcet rcos rcsc rcss rctc rcts recc rece reck recr recs rect reek rees reet reke reko reks rekt reos reot rere rero rers rert rese reso ress rest rete reto retr rets rett rkos rkss rkts rocc roce rock roco rocs roer roes roet roke rokk roko rokr roks rook roor roos root rorc rore rork roro rort rosc rose roso ross rost rotc rote rotk