-ene c-cd cccc cccf cccl ccdc ccdf ccdh ccdn cced ccee ccel ccfc ccfd ccff ccfl cche cchl cclc ccnc ccne ccnf cd-e cddl cdec cdef cdfe cdnc cdnf cec- cece cedd cede ceec ceel cef- cefc cefn cehl cel- celc cele celf cell cen- cend cene cfcf cfcl cfcn cfln chce chch chec ched chee chef cheh chel chen chfc chlc chln chnc chnl clcd cldc clec cled clee clef cndd cnel dccc dccl dcfc dche dddd ddlc dec- decc decd dece decl dedd dede deed deef deel deen defe deff defn dehn deld dele delf dell dene denn dfcc dhec dhed dhee dhfc dnce e-cl eccc ecce eccl ecdc ecdf ecdl eced ecef ecfc eche echl ecne eddc edde ede- edeh edel eden edfl edle ednl eede eeee eefe eefl eefn eele eend efen ehcc ehdd eheh ehel ehen ehle elce elch elde elec eled elee elef eleh elen elfc elfe elle elne ence ench encl end- ende endh ened enee enel ennc enne fccf fcch fcnl fece fech fede fedn feed feel feen fefc fefe feff fehd fehl feld fele felf fell fend fene fenn ffcc ffee ffff flcl fled flee flen flnc fndd fndn fnlc hccc hcch hcfc hdfc hech hedd hede heed heef heel hefd hefe hehe hehn held hele helf hell hend hene henh henn hfce hhcl hhhh hlde hnce hndd lccc lcce lcdd lcfc lchc ldcf lece lech lede leed leef leel leen lefe leff lehe lele lell lend lene lenn lfcc lfhe lhec lhee lhhh llcc lldc llef lllc llll lndn nccc nccf nccn ncdc ncdn ncec nced ncee ncef ncel ncen ncfc ncfe nchc nchd nclc ncln ncnc ncnd ndcc ndde ndhf necc nece nech nedc nedd nede need neef neel neen nefd nefe neff nefh nefl nehe nelc neld nele nelf nell nend nene nenh nfdc nfff nfld nhcc nhhl nhnn nlcc nlcf nlec nnnn