c-cd cccc cccf ccci cccu ccdc ccdf ccdi ccfc ccfd ccff ccfi ccic ccid ccii ccoc ccod ccuc cdic cdii cdio cfcf cfco cicc cici cico cicu cidc cidi ciff ciid ciii ciuc coco cocu codd codi cofc coff cofi coif cood coof coud cucc cuci cudi cufc cuff cufi cufo cui- cuif dccc dcci dccu dcfc dcii dcio dddd ddoc dfcc dfco dfcu dici dico didi dido didu dif- diff diii dioc diou doci doco docu dod- dodd dodi dodo doff doid dood doof douc doud douf duco dudd dudo dudu dufc duff dufu duid duif duo- fccf fcic fcii fdic fdoc ffcc ffff ffii ficc fico fidc fidf fido fifc fiff fifi fifo fiii foci foco fofo foid food foof foud fuc- fuci fudd fudi fufc fuff fufu fuid iccc iccf icci icco iccu icdc icdd icoc icod iddo idfc idic idid idio idoc iduo ifcd ifco ific ifid iicd iiii iiio iioi iioo iiuc ioci iod- iodd iodo iofc ioii ioio ioof iooi iooo iucc iuiu occc occi odci oddd oddi odic odio odiu odoo odou off- offc offo offu ofid oici oido oiii oodi ooff ooid oooo oucc oudc oufc ouff ouii ouu- ucci ucdc ucdd ucio uddi udic udid udoo ufcu uocc uofo uuoc uuuu