cccc ccci cccl ccic ccii ccil cclc ccli ccoc cctc cctl cctt cicc cici cico cict ciii ciit cili cill cilo cilt citi citl cito citt city clic clii clio clit cloo clot cloy cltc cly- coco coct coil coit col- coli coll colo colt coly cool coot cotc coti coto cott coty coyl coyo coyt ctic ctol ctot cyc- cycc cycl cyl- cylc cyll cyt- cyto cyy- cyyc iccc icci iccl icco icct icll icoc iiii iiio iiit iioi iioo iitt ilic ilio ilit ill- illi illo illt illy iloc iloo ilot ioci ioii ioio ioit iolo iooi iooo ioto itic itil itll itoi itol itoo itto itty lccc lctl lcto lico lict liii lili lill lilo lilt lily lio- liti litl lito litt lity liyl llcc lllc llll lloc lloo locc loci loco loic loit loli loll lolo loly looc lool loot loti lotl loto lott ltcc ltci lttc lyc- lyco lyit lyly lyo- lyot lyto lytt occc occi occt oclc oct- octi octo octy oici oiii oily oitc oiti oiyl olcc olic olio olit olli ollo olly olot oolo oooo ooty otcl otic otit oto- otoo otoy otti otto oyly tccc tctc ticc tico tiit till tilo tilt tily titc titi tito titt tiyi tiyo tlco tlli to-y toci toco toil toit tol- toli toll tolo tolt toly tool toot totc toti toto tott toty toyl toyo toyt ttoy tttt ttyl tyco tyl- tyll tylo tyti tyto tytt tyty yccc yctc yili yill yilt yiti ylli yoit yoli yoll yolo yoly yool yoot yott yoyo yyyy