a-a a-c aaa aac aak aao aap aar aas ac- aca acc ack aco acp acr acs aka akc akk ako akp akr aks aoa aoc aok aoo aop aor aos ap- apa apc apk apo app apr aps ar- ara arc ark aro arp arr ars as- asa asc ask aso asp asr ass c-- caa cac cak cao cap car cas cca ccc cck cco ccp ccr ccs cka ckc cko cks co- coa coc cok coo cop cor cos cpa cpc cpk cpo cpp cpr cps cra crc crk cro crp crr crs csa csc csk cso csp csr css ka- kaa kac kak kao kap kar kas kca kcc kck kcp kcr kcs kkc kkk kkp kkr kks koa koc kok koo kop kor kos kpa kpc kpk kpo kpp kpr kps kra krc krk kro krp krr krs ksa ksc ksk kso ksp ksr kss oaa oac oak oao oap oar oas oc- oca occ ock oco ocp ocr ocs oka okc okk oko okp okr oks oo- ooa ooc ook ooo oop oor oos op- opa opc opk opo opp opr ops or- ora orc ork oro orp orr ors os- osa osc osk oso osp osr oss p-p paa pac pak pao pap par pas pca pcc pck pco pcp pcr pcs pka pkc pko pkp pkr pks poa poc pok poo pop por pos ppa ppc ppk ppo ppp ppr pps pra prc prk pro prp prr prs ps- psa psc psk pso psp psr pss ra- raa rac rak rao rap rar ras rca rcc rco rcp rcr rcs rkc rkk rko rkp rks roa roc rok roo rop ror ros rpa rpc rpk rpo rpp rpr rps rra rrc rrk rrp rrr rrs rsa rsc rsk rso rsp rsr rss saa sac sak sao sap sar sas sca scc sck sco scp scr scs sk- ska skc skk sko skp skr sks soa soc sok soo sop sor sos spa spc spk spo spp spr sps sr- sra src srk sro srp srr srs ss- ssa ssc ssk sso ssp ssr sss

a-ak a-ok aaaa aaac aaap aaar aaas aaca aacc aack aaco aacp aacr aacs aaka aaoo aapa aapc aapo aaps aara aarc aaro aarp aars aasa aasc aass acaa acac acap acar acas acca accc acco accp accs acks acoa acop acor acos acpa acpr acps acr- acra acrc acro acrr acrs acsa acsc acss akaa akao akap akar akas akca akka akko akok akos akpo akr- akra aksa aoca aocs aokp aoks aopo aora aors aosp aoss apac apak apao apap apar apas apca apcc apco apcr apcs apo- apoc apoo apop apor apos appa appc appr apps apra aprc apro aprs apsa apso apss arac arak arap arar aras arc- arca arco arcs arka arko arks aroa aroo aror aros arpa arps arr- arra arrc arrk arro arrr arrs ars- arsa arsc arsk arso asaa asac asak asao asap asar asas asc- asca ascc asco ascp ascr aska asko askr asks asoc asok asop asor asos aspa aspc aspo aspr asps asra asrc asro asrs assa assc assk asso assp assr asss caaa caac caap caas cac- caca cacc cack caco cacr caka caor caos capa capc capo capp caps cara carc cark caro carp carr cars casa casc cask caso casp casr cass ccaa ccac ccap ccar ccas ccca cccc cccp cccs ccoc ccpa ccpp ccpr ccps ccra ccrc ccrp ccrs ccsa ccsp ccss ckac ckck ckco ckcs ckoa ckoc ckoo ckor ckos ckpc ckpr ckrc cksa ckso coak coas coca cock coco cocp cok- coka coko cook coop coos copa copo copp copr cops cor- cora corc cork coro corp corr cors cosa cosc coso cosp coss cpaa cpac cpap cpas cpca cpcs cpos cppa cpps cprs cpsa cpsc cpsk cpso cpsr crac crap crar cras crca crcc crcr crkc crkp croc crok croo crop cror crpc crps crsa crsp crss csaa csac csak csao csar csas cscc csco cscr cscs cska csks csor csos cspa cspc csps csra csrc csrs cssa cssr k-os kaaa kaak kaap kaar kaas kacc kaco kacp kacs kaka kakc kakk kako kaks kaoa kaoc kaok kaor kaos kap- kapa kapc kapo kapp kaps kara kark karo karp karr kars kas- kasa kasc kask kaso kasp kasr kass kcaa kcac kcap kcar kcas kcca kccc kcck kccr kckc kckk kcko kckr kcor kcos kcpa kcpc kcpo kcpr kcps kcrc kcro kcrp kcrr kcrs kcsa kcsc kcsp kcsr kcss kkaa kkac kkap kkar kkck kkco kkcr kkcs kkkk kkoa kkoo kkor kkpc kkpk kkps kkrc kkrk kkro kkrr kkrs kksa kksp kksr kkss koac koak koap koar koas koca kock kocp kocs koka kokc kokk koko kokp kokr koks kooc kook kooo koop koor koos kopa kopp kopr kops kora korc kork koro korr kors kos- kosa kosc koso kosp kosr koss kpac kpak kpao kpar kpas kpcc kpcr kpcs kpkk kpkr kpoa kpoc kpok kpoo kpop kppc kppk kppo kppp kppr kprc kprk kpro kprp kprr kprs kpsc kpso kpsp krac krak krap krar kras krca krcc krco krcs krka krkc krkk krko krkr krks kroa kroc krok kroo krop kror kros krpa krpr krps krrc krrk krro krrr krrs krsa krsc krsk krsr krss ksac ksak ksar ksas ksca ksck ksco kscr kscs kska kskk ksko kskr ksks ksoc ksok ksoo ksop ksor ksos kspa kspc kspk kspo kspr ksps ksra ksro ksrp ksrr ksrs kssa ksso kssr ksss oaks oaps oara oars oasc oass ocac ocak ocap ocas occa occc ocks ocos ocpa ocpp ocra ocro ocrr ocrs ocsa okak okap okas okka okko okok okor okpo okra okro oksa okso ooaa ooak oocr oooo ooos oops oora oosa opap opar opca opo- opor opos oppa oppo opps opra opsa orac orak orao orar oras orca orco orcs orka orko oro- orok oror oros orpc orps orra orro orrs orsa orsk orso osak osap osar osas osca oscc osco osoo osor osos osro ossa osso paak paap