c-cd cccc ccci cccp ccdc ccdi ccdp ccic ccid ccii ccip ccoc ccod ccpp cctc cctt cdic cdii cdio cdot cicc cici cico cict cidc cidi cidp cidt ciid ciii ciit cipo cipp citi cito citp citt coco cocp coct codd codi coip coit cood coop coot copd copi copo copp copt cotc coti coto cott cpic cpio cppd cptp ctcp ctic ctot ctpo ctpp dccc dcci dccp dcct dcii dcio dcop dcpo dctc dddd ddoc ddot ddpo dici dico dict didi dido diii dioc diop diot dipc dipo dipp dipt diti dito ditt doci doco doct dod- dodd dodi dodo doid doit dood doop doot dopo dopp dopt dotd doti doto dott dpci dpcp dpdt dppc dtcc dtdp dtot dttp iccc icci icco iccp icct icdc icdd icdp icoc icod icpc icpd icpo ictp iddo idic idid idio idoc idtp iicd iiii iiio iiit iioi iioo iiop iitt ioci iocp iod- iodd iodo ioii ioio ioit iooi iooo ioto ipcc ipct ipdc ipdi ipid ipod ipop ippc ippo iptc ipto itdo itic itoi itoo itpc itto occc occi occt ocpd ocpp oct- octi octo odci oddd oddi odic odio odoo odop odot oici oido oiii oipc oitc oiti oodi ooid oooo ootp opic opii opio opit opo- oppi oppo opti opto otcd otic otit oto- otoo otpp otti otto pccc pcip pcod pcpp pdci pdcp pdic pdoc pdtc picc pici pico pict pido piip piot pipi pipo pipp piti pito pitt pocd poco pod- podd podi podo poid poio pood poop poot pop- popc popi popo popp popt potc potd poti poto pott ppcc ppcd ppci ppic ppid ppod pppd pppo pppp pptt ptcc ptdc ptop ptpd pttc tccc tcdd tcpo tctc ticc tico tidc tidd tiit tiop tip- tipc tipi tipo tipp tipt titc titi tito titp titt toci toco todd todi todo todt toid toit tood toot top- topd topi topo topp topt totc totd toti toto tott tpcd tpcp tppd tppp tptp ttcp ttop tttt