cccc cccf cccl ccee ccel ccfc ccff ccfl cclc ccoc cec- cece ceco ceec ceel cef- cefc cel- celc cele celf cell celo ceol cfcf cfcl cfco clec clee clef cleo cloe clof cloo coce coco coel cofc cofe coff col- cole coll colo coof cool e-cl eccc ecce eccl ecco ecef ecfc eco- ecol eeee eefe eefl eele eeoc efco efeo elce elco elec elee elef eleo elfc elfe elle ello eole eolo fccf fece feel fefc fefe feff fefo fele felf fell felo feof ffcc ffee ffff flcl flee floc floe floo foce foco fofo folc fole foll folo foof fool lccc lcce lcfc lece leco leef leel lefe leff lele lell lelo leoc leof lfcc llcc llef lllc llll lloc lloo locc loce loco lofe loff lole loll lolo looc looe loof lool o-eo occc oce ocee ocef oclc oec- oecc oeec oele ofcl off- offc offe offo olcc ole- olef oleo olfe olle ollo olof ooff oolo oooo