-er c-- ccc cce cck cco ccr ccs cct ccv ce- cec cee cek ceo cer ces cet cev ckc cko cks ckt co- coc coe cok coo cor cos cot cov crc cre crk cro crr crs crt crv csc cse csk cso csr css cst csv ctc cte ctk cto ctr cts ctt ctv cvc cve cvk cvo cvr cvs cvt cvv ec- ecc ece eck eco ecr ecs ect ecv eec eee eek eeo eer ees eet eev ekc eke eko ekr eks ekt ekv eo- eoc eoe eok eoo eor eos eot erc ere erk ero err ers ert erv es- esc ese esk eso esr ess est esv etc ete etk eto etr ets ett etv evc eve evo evr evs evt evv k-t kcc kce kck kcr kcs kct ke- kec kee kek keo ker kes ket kev kkc kke kkk kkr kks kkt kkv koc koe kok koo kor kos kot krc krk kro krr krs krt krv ksc kse ksk kso ksr kss kst ksv ktc kte ktk kto ktr kts ktt ktv kvk kvo kvr kvs kvv oc- occ ock oco ocr ocs oct ocv oec oee oeo oer oes oet okc oke okk oko okr oks oo- ooc ook ooo oor oos oot oov or- orc ore ork oro orr ors ort orv os- osc ose osk oso osr oss ost osv ot- otc ote otk oto otr ots ott otv ov- ovc ove ovo ovs ovv rcc rce rco rcr rcs rct rcv re- rec ree rek reo rer res ret rev rkc rke rkk rko rks rkt rkv roc roe rok roo ror ros rot rov rrc rrk rrr rrs rrt rsc rse rsk rso rsr rss rst rsv rtc rte rtk rto rtr rts rtt rtv rvc rve rvo rvr rvs rvt rvv scc sce sck sco scr scs sct scv se- sec see sek seo ser ses set sev sk- skc ske skk sko skr sks skt soc soe sok soo sor sos sot sov sr- src sre srk sro srr srs srt srv ss- ssc sse ssk sso ssr sss sst ssv stc ste stk sto str sts stt stv svc sve svk svo svr svs svt svv tcc tce tck tco tcr tcs tct tcv te- tec tee tek teo ter tes tet tev tkc tke tkk tko tkr tks tkt to- toc toe tok too tor tos tot tov trc tre trk tro trr trs trt trv tsc tse tsk tso tsr tss tst tsv ttc tte ttk tto ttr tts ttt ttv tvc tve tvk tvo tvr tvs tvt v-e vcc vce vco vcr vcs vct vec vee vek veo ver ves vet vkt voc voe vok voo vor vos vot vov vrc vre vrk vrr vrs vrt vsc vse vsk vso vsr vss vst vsv vtc vte vtk vto vtr vts vtt vtv vvc vvo vvr vvs vvt vvv

-ose cccc cccs cccv ccee ccoc ccrc ccre ccrs ccrt ccss ccst cctc cctt cctv ccvo ccvs 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 cetv cevo ckck ckco ckcs ckcv cker ckoc ckoo ckor ckos ckot ckrc ckso ckst ckts ckvo 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 cove covo crcc crce crcr cre- crec cree creo cres cret crkc croc croe crok croo cror crot crrt crss crst crtc crts crtv 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 ctvo ctvt cvcc cver cvet cvrr cvss cvte eccc ecce ecco ecct eces ecko ecks eco- ecos ecot ecrc ecrr ecrv ecsc ecse ecss ect- ectc ecto ects ectv 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 erev erke erks eroc eroe eroo eros errc erre erro errs erse erso erst erts erve esce esco escr escs esee esek eseo eser eses eset eske esko esks eso- esok esos esse esso esst estc este esto estr ests estv etcc etco etcs etec etee eter etes etoe etok etos etre etro ette etto etvo ever eves evet evoe evoo evos evre evrs evsc evst evvk k-os kccc kcck kccr kcct kccv kcec kcee kceo kcet kckc kckk kcko kckr kckv kcoe kcor kcos kcot kcrc kcro kcrr kcrs kcrt kcrv kcsc kcse kcsr kcss kcst kctc kcte kcto kctv kcvk kcvo kcvr kcvs kcvv keck keco kecr keek keer kees keet kekc keke keko keks keok keos ker- kerc kere kerk kero kerr kers kert kerv kesc kesk keso kesr kess kest ket- ketc kete ketk keto ketr kets kett ketv keve kevs kevt kkck kkco kkcr kkcs kkct kkkk kkoo kkor kkot kkov kkrc kkre kkrk kkro kkrr kkrs kkrt kkrv kkse kksr kkss kkst kktc kktk kkts kktv kkvr kkvt kkvv kock kocs koct koes kokc koke kokk koko kokr koks kooc kook kooo koor koos koot koov korc kore kork koro korr kors kort korv kos- kosc kose koso kosr koss kost kotc kote kotk koto kotr kots kott kotv kovc kove kovk kovo kovr krcc krce krco krcs krec kree krek kreo kres kret krev krkc krke krkk krko krkr krks krkv kroc kroe krok kroo kror kros krov krrc krre krrk krro krrr krrs krrt krsc krse krsk krsr krss krst krsv krtc krtk krto krtr krts krtv krvc krve krvk krvo krvr krvs krvv ksce ksck ksco kscr kscs kscv ksec ksee ksek kseo kser kset ksev kske kskk ksko kskr ksks ksoc ksok ksoo ksor ksos ksro ksrr ksrs ksrt ksrv ksse ksso kssr ksss ksst kstc kste kstk ksto