cccc cccf ccci cccl ccfc ccff ccfi ccfl ccic ccii ccil cclc ccli ccoc cfcf cfcl cfco cicc cici cico ciff cifl ciii cili cill cilo clic clif clii clio clof cloo coco cofc coff cofi coif coil col- coli coll colo coof cool fccf fcic fcii ffcc ffff ffii ficc fico fifc fiff fifi fifo fiii fiil fili fill filo flcl flic flii floc floo foci foco fofo foil folc foli foll folo foof fool iccc iccf icci iccl icco icll icoc ifco ific ifil iiii iiio iioi iioo ilic ilio ill- illi illo iloc iloo ioci iofc ioii ioio iolo ioof iooi iooo lccc lcfc lfcc lico liff lifl lifo liii lili lill lilo lio- llcc lllc llll lloc lloo locc loci loco loff lofi loic loif loli loll lolo looc loof lool occc occi oclc ofcl off- offc offo oici oiii olcc olic olio olli ollo olof ooff oolo oooo