c-cd cccc ccci cccp ccdc ccdi ccdp ccic ccid ccii ccip ccpp cctc cctt cdic cdii cicc cici cict cidc cidi cidp cidt ciid ciii ciit cipp citi citp citt city cpic cppd cptp ctcp ctic ctpp cyc- cycc cypc cyt- cyy- cyyc dc-y dccc dcci dccp dcct dcii dctc dddd dici dict dicy didi didy diii dipc dipp dipt diti ditt diyi dpci dpcp dpdt dppc dpty dpyd dtcc dtdp dttp dycd dydd dyit dyt- dytc dyty iccc icci iccp icct icdc icdd icdp icpc icpd ictp idic idid idtp iicd iiii iiit iitt ipcc ipct ipdc ipdi ipid ippc ippy iptc itic itpc itty iypt pccc pcip pcpp pdci pdcp pdic pdtc picc pici pict picy piip pipi pipp pipy piti pitt pity ppcc ppcd ppci ppic ppid pppd pppp pptt ptcc ptdc ptpd pttc pyic pypy pytt tccc tcdd tcpy tctc ticc tidc tidd tidy tiit tip- tipc tipi tipp tipt titc titi titp titt tiyi tpcd tpcp tppd tppp tptp ttcp tttt ttyd tydd tydi tydy typ- typp typy tytd tyti tytt tyty yccc yctc ydyt yidi yiti yitp ypcc yyyy