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 cozi cozz 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 izzo occc occi occt ocpp oct- octi octo oici oiii oipc oitc oiti oitz oooo ootp oozi opic opii opio opit opo- oppi oppo opti opto otic otit oto- otoo otpp otti otto otzi pccc pcip pcpp picc pici pico pict piip piot pioz pipi pipo pipp piti pito pitt pitz poco poio poop poot pop- popc popi popo popp popt potc poti poto pott pozo 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 titz tizi tizz toci toco toit toot top- topi topo topp topt topz totc toti toto tott tozo tpcp tppp tptp ttcp ttop tttt tzzt zico ziip zipp ziti zito zizi zizz zoco zoic zoio zoo- zoop zoot zoti zott zotz zozo ztop zzzz