cccc ccci cccp ccic ccii ccip ccoc ccpp cctc cctt cicc cici cico cict ciii ciit cipo cipp citi cito citp citt coco cocp coct coip coit coop coot copi copo copp copt cotc coti coto cott cpic cpio cptp ctcp ctic ctot ctpo ctpp iccc icci icco iccp icct icoc icpc icpo ictp iiii iiio iiit iioi iioo iiop iitt ioci iocp ioii ioio ioit iooi iooo ioto ipcc ipct ipop ippc ippo iptc ipto itic itoi itoo itpc itto occc occi occt ocpp oct- octi octo oici oiii oipc oitc oiti oooo ootp opic opii opio opit opo- oppi oppo opti opto otic otit oto- otoo otpp otti otto pccc pcip pcpp picc pici pico pict piip piot pipi pipo pipp piti pito pitt poco poio poop poot pop- popc popi popo popp popt potc poti poto pott ppcc ppci ppic pppo pppp pptt ptcc ptop pttc tccc tcpo tctc ticc tico tiit tiop tip- tipc tipi tipo tipp tipt titc titi tito titp titt toci toco toit toot top- topi topo topp topt totc toti toto tott tpcp tppp tptp ttcp ttop tttt