a-ak aaaa aaac aaap aaca aacc aack aacp aact aaka aapa aapc aapt aata aatc aatk aatt ac-t acaa acac acap acat acca accc accp acct acpa acpt acta actc actt akaa akap akca akka apac apak apap apat apax apca apcc appa appc appt appx apta aptc aptt aptx at-t at-x ataa atac atak atap atat atax atca atcc atck atka atkt atta attp axat caaa caac caap caat cac- caca cacc cack caka capa capc capp capt capx cat- cata catc catt caxa ccaa ccac ccap ccat ccca cccc cccp ccpa ccpp cctc cctt ckac ckat ckck ckcx ckpc cpaa cpac cpap cpca cppa cptp ctca ctcp ctpp ctta cxxx kaaa kaak kaap kaat kacc kacp kact kaka kakc kakk kakt kakx kap- kapa kapc kapp kapt kat- kata katc katk katp katt katx kaxa kc-x kcaa kcac kcap kcat kcca kccc kcck kcct kckc kckk kckx kcpa kcpc kcpt kcpx kcta kctc kctx kkaa kkac kkap kkat kkck kkct kkkk kkpc kkpk kkpt kktc kktk kktx kkxa kkxk kkxt kkxx kpac kpak kpat kpax kpcc kpkk kpkx kppc kppk kppp kptt kptx kpxp ktaa ktak ktap ktat ktcc ktck ktcx ktkc ktkk ktkt ktkx ktpa ktpk ktpt kttc kttk kttp kttt kttx ktxa ktxc ktxk ktxp ktxt kxaa kxac kxca kxkc kxkk kxkt kxkx kxpa kxpc kxpk kxpt kxta kxtc kxtk kxtt kxtx kxxk kxxt kxxx paak paap paat paca pack pact pacx paka papa papp pata patt pcaa pcap pcca pccc pcpp ppac ppap ppcc pppa pppp ppta pptt ptak ptca ptcc pttc pttk taa- taat taca tacc tack tact taka takk takt tapa tapp tapt tata tatt tax- taxa taxt tcap tcca tccc tcpa tctc tkac tpac tpap tpck tpcp tppa tppp tptp ttcp tttt txaa xact xcat xpac xpak xpax xpcc xxxx