cccc cccf ccee ccfc ccff cche cchr ccoc ccrc ccre ccrf cec- cece ceco ceec cef- cefc ceor cer- cerc cere cerf cero cfcf cfco cffr cfor cfre chce chch chec chee chef cheh cher chfc chfr choc choh choo chor chrc chrf chro chrr coce coch coco cofc cofe coff coho coof cooh cor- corc core corf coro corr crcc crce crcr cre- crec cree creh creo crfc croc croe croh croo cror eccc ecce ecco ecef ecfc ecfr eche echo eco- ecrc ecrf ecrr eeee eefe eeoc eerc eero efco efeo efor ehcc eheh eher ehre eore ercc erce erch erec erer erfc erhc eroc eroe eroo errc erre erro fccf fcch fece fech feer fefc fefe feff fefo fehr feof feoh ferc fere fero ferr ffcc ffee ffff ffrr foce foch foco foer fofo fohr foof for- fore foro forr frcc free freo frfc froe froh hccc hcch hcfc hech heef heer hefe hehe heho heor herc here hero herr hfce hhhh hhof hoce hoch hocr hoer hofe hoff hohe hoho hooe hoof hoor horc hore horo horr hree hrfc hrrc o-eo occc oce ocee ocef oche ocre ocro ocrr oec- oecc oeec oere ofcr ofer off- offc offe offh offo offr ofor ofre ohcc ohee oher ohho ohoh ohre oocr ooer ooff ooho oooh oooo oore orce orch orco ore- orec oreh oreo orer orfe orff orhe oro- oroe orof oror orro rccc rcfc recc rece rech recr reef refe reff refr rehe reof rere rero rfef rffc rhce rhee rheo rhoc rhoh rocc roce roch roco roer rofc rofe roff rofo rohe rohr roof roor rorc rore roro rrfc rrrr