-ana a-ak aaaa aaac aaaf aaan aaar aaas aaca aacc aacf aack aacn aacr aacs aafa aafc aaff aaka aana aara aarc aars aasa aasc aasf aass acaa acac acan acar acas acca accc accf accs acfc acfs acks acr- acra acrc acrr acrs acsa acsc acss afaa afak afan afar afca afcc afcs affa affc affs afka afkr afr- afra afrc afrs afsa afsc akaa akan akar akas akca akka akna akr- akra aksa ana- anaa anac anak anan anar anas anca ancc anfa ank- anka anna anns anrc ansa ansf arac araf arak aran arar aras arc- arca arcs arfa arfc arff arfs arka arks arna arnk arns arr- arra arrc arrk arrr arrs ars- arsa arsc arsk asaa asac asaf asak asan asar asas asc- asca ascc ascr asfa aska askr asks asnc asra asrc asrs assa assc assk assn assr asss caaa caac caaf caan caas cac- caca cacc cack cacr cafa cafc caff cafs caka cana canc cank cann cans cara carc carf cark carn carr cars casa casc cask casr cass ccaa ccac ccaf ccar ccas ccca cccc cccf cccs ccfa ccfc ccff ccna ccnc ccnf ccnr ccns ccra ccrc ccrf ccrs ccsa ccsf ccsn ccss cfaa cfac cfar cfca cfcf cfcn cfcs cffr cfnr cfns cfra cfrn cfsa ckac ckan ckck ckcs ckfr cknc ckns ckrc cksa cnaa cnac cnas cnfa cnna cnrc cnrr cnsa cnss crac craf cran crar cras crca crcc crcr crfc crfs crkc crna crns crsa crss csaa csac csak csar csas cscc cscf cscr cscs csfc csfr cska csks csra csrc csrs cssa cssr f--k faaa faac faan faas faca facc fack facs fafa fafc faff fana fanc fank fans fara farc fark farr fars fasa fasc fasn fass fcar fcas fcca fccf fcra fcsc ffar ffcc ffff ffrr ffsa ffss fnac fnar fnrs frac frak fran fras frcc frcn frfc frns frsc fsas fscc fsck fsra fssa fssc fssf kaaa kaaf kaak kaan kaar kaas kacc kacs kafa kafc kaff kafn kafr kafs kaka kakc kakk kakn kaks kana kanf kann kans kara karf kark karn karr kars kas- kasa kasc kasf kask kasn kasr kass kcaa kcac kcar kcas kcca kccc kcck kccr kcfa kcfc kcfn kckc kckf kckk kckn kckr kcnr kcns kcrc kcrn kcrr kcrs kcsa kcsc kcsf kcsn kcsr kcss kfac kfan kfar kfcf kfcr kfcs kffa kfff kffk kffn kfka kfna kfnc kfnf kfnk kfnn kfns kfra kfrc kfrn kfrr kfrs kfsa kfsk kfsr kkaa kkac kkan kkar kkck kkcn kkcr kkcs kkfn kkfr kkfs kkkk kknn kkns kkrc kkrf kkrk kkrn kkrr kkrs kksa kksf kksn kksr kkss knaa knac knaf knan knar knas knca knck kncn kncr knfa knfr knkk knnk knnr knns knrk knrs knsa knsc knsk knsn knsr knss krac krak kran krar kras krca krcc krcn krcs krfc krff krfn krfs krka krkc krkk krkn krkr krks krna krnk krnn krrc krrf krrk krrn krrr krrs krsa krsc krsf krsk krsn krsr krss ksac ksaf ksak ksan ksar ksas ksca ksck kscn kscr kscs ksfa ksfc ksfn ksfr kska kskf kskk kskn kskr ksks ksna ksnc ksnf ksnk ksnn ksnr ksns ksra ksrf ksrn ksrr ksrs kssa kssn kssr ksss naaa naac naan naar naas naca nacc nacf nack nacs nafa nafc naff nafs naka naks nan- nana nann nans nara narc narf nark narn narr nars nas- nasa nasc nasf nask nasr nass ncaa ncac ncar ncca nccc nccf nccn nccr nccs ncfc ncna ncnc ncra ncrc ncsa ncsc ncsf ncss nfaa nfas nfff nfra nfrs nfsr nkfc nkrf nnnn nnsa nnss nras nrca nrcs nrfc nrna nrrc nrsa nrsc nsaa nsac nsar nsca nscc nscs nsfc nsfk nsfs nskk nsna nsnr nsra nsrc nssa nssc nssf nssr nsss raaf raak raan raas rac- raca racc rack racs rafa rafc raff raka rakk rana ranc rank rann rans rara rarf rark rars rasa rasc rask rass rcac rcaf rcas rccc rccs rcfc rcnr rcsa rcsc rcss rffc rkkf rkss rnaf rnas rncs rras rrfc rrna rrrr rsaa rsaf rscc rscn rscs rsfc rsna rsnn rsnr rssa sa-c saac saaf saak saan saar saas saca sacc sack sacn sacr sacs safa safc saff safr saka sakk saks sana sank sann sanr sans sara sarc sarf sark sarn sarr sars sasa sasc sasf sask sass scaa scac scaf scak scan scar scas sccc sccs scfa scfc sck- scna scnr scr- scra scrc scrn scrs scsa scsc scsn scsr sfar sfas sfca sfcc sfcs sffc sfra sfrc sfss skac skaf skan skar skfc skn- skra skss snak snar snas snca sncc sncf snns snra snrk snrs sraf sras srcc srfc srna srnn ssaa ssac ssan ssas ssca sscc sscs ssfc ssns ssra ssrc ssrs sssa sssc sssf ssss