-er -ic c-- ccc cce cci cck cco ccr cct ccu ccv ce- cec cee cei cek ceo cer cet ceu cev ci- cic cie cii cik cio cir cit ciu civ ckc cki cko ckt co- coc coe coi cok coo cor cot cou cov crc cre cri crk cro crr crt cru crv ctc cte cti ctk cto ctr ctt ctu ctv cuc cue cui cuk cuo cur cut cuu cuv cvc cve cvi cvk cvo cvr cvt cvu cvv ec- ecc ece eci eck eco ecr ect ecu ecv eec eee eek eeo eer eet eev eic eie eii eik eio eir eit eiu eiv ekc eke eki eko ekr ekt eku ekv eo- eoc eoe eoi eok eoo eor eot eou erc ere eri erk ero err ert eru erv etc ete eti etk eto etr ett etu etv eu- euc eue eui eur eut euv evc eve evi evo evr evt evv i-v icc ice ici ick ico icr ict icu icv ie- iec iee iei iek ier iet iev iic iie iii iio iir iit iiu ikc ike iki ikk iko ikr ikt iku ikv io- ioc ioe ioi ioo ior iot iou iov ir- irc ire iri irk iro irr irt iru irv itc ite iti itk ito itt itu itv iu- iuc iue iui iur iut ivc ive ivi ivo ivr ivt ivu ivv k-t kcc kce kci kck kcr kct kcu ke- kec kee kei kek keo ker ket kev kic kie kii kik kio kir kit kiu kiv kkc kke kki kkk kkr kkt kku kkv koc koe koi kok koo kor kot kou krc kri krk kro krr krt kru krv ktc kte ktk kto ktr ktt ktu ktv kuc kue kui kuk kur kut kuu kvi kvk kvo kvr kvv o-i oc- occ oci ock oco ocr oct ocu ocv oec oee oei oeo oer oet oic oie oii oik oio oir oit oiu oiv okc oke oki okk oko okr oku oo- ooc ooi ook ooo oor oot oov or- orc ore ori ork oro orr ort oru orv ot- otc ote oti otk oto otr ott otu otv ou- ouc oue oui ouk ouo our out ov- ovc ove ovi ovo ovv rcc rce rci rco rcr rct rcu rcv re- rec ree rei rek reo rer ret reu rev ric rie rii rik rio rir rit riv rkc rke rkk rko rkt rku rkv roc roe roi rok roo ror rot rou rov rrc rri rrk rrr rrt rru rtc rte rti rtk rto rtr rtt rtu rtv ruc rue rui ruk ruo rur rut ruu ruv rvc rve rvi rvo rvr rvt rvu rvv tcc tce tci tck tco tcr tct tcu tcv te- tec tee tei tek teo ter tet teu tev tic tie tii tik tio tir tit tiu tiv tkc tke tkk tko tkr tkt to- toc toe toi tok too tor tot tou tov trc tre tri trk tro trr trt tru trv ttc tte tti ttk tto ttr ttt ttu ttv tuc tue tui tuk tuo tur tut tuu tuv tvc tve tvi tvk tvo tvr tvt tvu ucc uce uci uck uco ucr uct ucu ucv uec uee uei uer uet uic uie uii uio uir uit uiu ukc uke uki ukk ukr uku uoc uoe uok uoo uor uot ur- urc ure uri urk uro urr urt uru utc ute uti utk uto utr utt utu utv uuc uue uur uut uuu uvc uve uvo uvu uvv v-e vcc vce vci vco vcr vct vcu vec vee vei vek veo ver vet veu vi- vic vie vii vik vio vir vit viu viv vkt voc voe voi vok voo vor vot vou vov vrc vre vri vrk vrr vrt vru vtc vte vti vtk vto vtr vtt vtu vtv vue vuk vur vut vuv vvc vvi vvo vvr vvt vvv