cccc cccf cccl ccfc ccff ccfl cchl cclc ccoc cfcf cfcl cfco chch chfc chlc choc choh chol choo clof cloo coch coco cofc coff coho col- coll colo coof cooh cool fccf fcch ffcc ffff flcl floc floo foch foco fofo folc foll folo foof fool hccc hcch hcfc hhcl hhhh hhof hoch hoff hohl hoho hol- holc holh holl holo hoof hool lccc lcfc lchc lfcc lhhh llcc lllc llll lloc lloo locc loch loco loff loho loll lolo looc loof lool occc oclc ofcl off- offc offh offo ohcc ohho ohoh olcc ollo olof ooff ooho oolo oooh oooo