c-cd cccc ccci ccdc ccdi ccic ccid ccii ccoc ccod cctc cctt cdic cdii cdio cdot cicc cici cico cict cidc cidi cidt ciid ciii ciit citi cito citt coco coct codd codi coit cood coot cotc coti coto cott ctic ctot dccc dcci dcct dcii dcio dctc dddd ddoc ddot dici dico dict didi dido diii dioc diot diti dito ditt doci doco doct dod- dodd dodi dodo doid doit dood doot dotd doti doto dott dtcc dtot iccc icci icco icct icdc icdd icoc icod iddo idic idid idio idoc iicd iiii iiio iiit iioi iioo iitt ioci iod- iodd iodo ioii ioio ioit iooi iooo ioto itdo itic itoi itoo itto occc occi occt oct- octi octo odci oddd oddi odic odio odoo odot oici oido oiii oitc oiti oodi ooid oooo otcd otic otit oto- otoo otti otto tccc tcdd tctc ticc tico tidc tidd tiit titc titi tito titt toci toco todd todi todo todt toid toit tood toot totc totd toti toto tott tttt