c-cd cccc cccf cccl ccdc ccdf ccdr cced ccee ccel ccfc ccfd ccff ccfl cclc ccrc ccre ccrf ccrl cd-e cd-r cddl cddr cdec cdef cder cdfe cdre cec- cece cedd cede ceec ceel cef- cefc ceke cel- celc cele celf cell cer- cerc cerd cere cerf cerl cfcf cfcl cffr cfre ckck ckcl cker ckfr cklf ckrc ckrd clcd cldc cldr clec cled clee clef clek cler clrd crcc crce crcr crdc cre- crec cred cree crfc crfl crkc crkl crlf dccc dccl dcfc dcrk dddd ddlc ddrc ddre dec- decc decd dece deck decl dedd dede deed deef deek deel deer defe deff dek- deke deld dele delf delk dell der- derc dere derf derk derr dfcc dfer dfrf dkdc dred dree dref drek drel drfc e-cl eccc ecce eccl ecdc ecdf ecdl eced ecef ecfc ecfr ecrc ecrf ecrl ecrr eddc edde ede- edel eder edfl edle eede eeee eefe eefl eeke eele eerc efke eked ekek eker ekfc elce elde eldr elec eled elee elef elek eler elfc elfe elke elle ercc erce erde erdf erec ered erel erer erfc erke erld erle erll errc erre f--k fccf fdlr fece feck fede feed feek feel feer fefc fefe feff feke feld fele felf felk fell ferc ferd fere ferk ferr ffcc ffee ffff ffrr flcl fldr fled flee fler frcc fred free frfc kccc kccd kcck kccl kccr kcdc kcdd kcdr kcec kced kcee kcel kcfc kcfd kcfl kckc kckf kckk kckl kckr kclc kcle kclf kclk kcll kclr kcrc kcrr kdcc kdcd kdce kdcr kddc kddd kddf kddk kddl kddr kdec kdef kdel kdfc kdfr kdkd kdkk kdkr kdlc kdld kdlf kdll kdlr kdrf kdrl keck kecr kedc kedd kede kedr keed keef keek keel keer kefc keff kefr kekc keke kekl keld kele kelf kelk kell ker- kerc kere kerf kerk kerl kerr kfcd kfcf kfcr kfed kfel kfer kfff kffk kflc kfld kflf kfll kfrc kfrd kfre kfrr kkcd kkck kkcl kkcr kkdc kkdd kkdl kked kkfr kkkk kklc kkld kklf kkll kkrc kkre kkrf kkrk kkrl kkrr klcc klcd klce klck klcl klcr kldc kldd klde kldr klec kled klee klef klek kler klfc klfd klfe klff klkc klkk klkl klkr kllc klle kllk klrc klrd klrf klrk klrr krcc krcd krce krcl krdc krdd krde krdr krec kred kree kref krek krfc krfd krfe krff krkc krkd krke krkk krkr krlc krld krle krlf krrc krre krrf krrk krrl krrr lccc lcce lcdd lcdr lcer lcfc lcfr lcrd lcrl ldcf lece leck lede leed leef leek leel leer lefe leff leke lekk lele lell lerc lerd lere lerk lfcc lfrd llcc lldc llef lllc llll lrdd lrfc lrrc lrrr rccc rcdc rcde rcfc rcle rcrd rder recc recd rece reck recr redc redd rede redl redr reed reef reek reel refd refe reff refl refr reke reld rele rell rerd rere rfef rffc rffl rkkf rlee rlef rred rrfc rrle rrrr