a-ak aaaa aaac aaad aaap aaar aaca aacc aacd aack aacp aacr aada aadc aaka aapa aapc aara aarc aard aarp acaa acac acad acap acar acca accc accd accp acda acdc acdp ackd acpa acpd acpr acr- acra acrc acrr adaa adac adad adak adap adar adcc adda addc addd addr adp- adra akaa akap akar akca akka akr- akra apac apak apap apar apca apcc apcd apcr apda apdd appa appc appd appr apra aprc arac arad arak arap arar arc- arca arda ardc arka arpa arr- arra arrc arrk arrr c-cd caaa caac caap cac- caca cacc cack cacr cada cadc cadd cadr caka capa capc capd capp cara carc card cark carp carr ccaa ccac ccad ccap ccar ccca cccc cccp ccdc ccdp ccdr ccpa ccpp ccpr ccra ccrc ccrp cd-r cdaa cdac cdad cdda cddr ckac ckck ckpc ckpr ckrc ckrd cpaa cpac cpad cpap cpca cppa cppd crac crap crar crca crcc crcr crda crdc crkc crkp crpc daad daap daar daca dada daka dapa dapp dara darc dard dark darp darr dcca dccc dccp dcra dcrk dddd ddrc dkdc dpaa dpac dpcp dppa dppc dprk draa drac drad drak drap drar drca drda drra kaaa kaak kaap kaar kacc kacd kacp kad- kada kadd kadr kaka kakc kakk kap- kapa kapc kapp kara kard kark karp karr kcaa kcac kcad kcap kcar kcca kccc kccd kcck kccr kcda kcdc kcdd kcdr kckc kckk kckr kcpa kcpc kcpr kcrc kcrp kcrr kdaa kdac kdad kdak kdap kdar kdca kdcc kdcd kdcr kddc kddd kddk kddr kdka kdkd kdkk kdkr kdpr kkaa kkac kkap kkar kkcd kkck kkcr kkda kkdc kkdd kkkk kkpc kkpk kkrc kkrk kkrr kpac kpad kpak kpar kpcc kpcr kpda kpdc kpdr kpkk kpkr kppc kppd kppk kppp kppr kprc kprd kprk kprp kprr krac krad krak krap krar krca krcc krcd krda krdc krdd krdr krka krkc krkd krkk krkr krpa krpr krrc krrk krrr paak paap paar paca pacd pack pada padd paka papa papp papr par- para parc pard park parp parr pcaa pcad pcap pcca pccc pcpp pcra pcrc pcrd pdac pdca pdcp pdpa pdpr pdrc ppac ppad ppap ppar ppcc ppcd ppdk pppa pppd pppp pprc prad prar prca prcc prcd prcp prpd prrd raad raak rac- raca racc rack rada radc radd radr raka rakk rapa rapc rapd rapp rara rark rcac rccc rcdc rcpd rcrd rdac rdap rdpc rpca rpdp rrad rrrr