c-cd cccc cccf cccl ccdc ccdf ccfc ccfd ccff ccfl cclc ccoc ccod cddl cfcf cfcl cfco clcd cldc clod clof cloo coco codd codl cofc coff col- cold coll colo cood coof cool dccc dccl dcfc dddd ddlc ddoc dfcc dfco dlco doco dod- dodd dodo doff dold dolf doll dolo dood doof dool fccf fdoc ffcc ffff flcl floc flod floo foco fofo folc fold foll folo food foof fool lccc lcdd lcfc ldcf lfcc llcc lldc lllc llll lloc llod lloo locc loco loff lold loll lolo looc lood loof lool occc oclc oddd odoo ofcl off- offc offo olcc ollo olof ooff oold oolo oooo