-ana aaaa aaac aaaf aaan aaar aaas aaca aacc aacf aacn aacr aacs aafa aafc aaff aana aara aarc aars aasa aasc aasf aass acaa acac acan acar acas acca accc accf accs acfc acfs acr- acra acrc acrr acrs acsa acsc acss afaa afan afar afca afcc afcs affa affc affs afr- afra afrc afrs afsa afsc ana- anaa anac anan anar anas anca ancc anfa anna anns anrc ansa ansf arac araf aran arar aras arc- arca arcs arfa arfc arff arfs arna arns arr- arra arrc arrr arrs ars- arsa arsc asaa asac asaf asan asar asas asc- asca ascc ascr asfa asnc asra asrc asrs assa assc assn assr asss caaa caac caaf caan caas cac- caca cacc cacr cafa cafc caff cafs cana canc cann cans cara carc carf carn carr cars casa casc 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 cnaa cnac cnas cnfa cnna cnrc cnrr cnsa cnss crac craf cran crar cras crca crcc crcr crfc crfs crna crns crsa crss csaa csac csar csas cscc cscf cscr cscs csfc csfr csra csrc csrs cssa cssr faaa faac faan faas faca facc facs fafa fafc faff fana fanc fans fara farc farr fars fasa fasc fasn fass fcar fcas fcca fccf fcra fcsc ffar ffcc ffff ffrr ffsa ffss fnac fnar fnrs frac fran fras frcc frcn frfc frns frsc fsas fscc fsra fssa fssc fssf naaa naac naan naar naas naca nacc nacf nacs nafa nafc naff nafs nan- nana nann nans nara narc narf narn narr nars nas- nasa nasc nasf 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 nnnn nnsa nnss nras nrca nrcs nrfc nrna nrrc nrsa nrsc nsaa nsac nsar nsca nscc nscs nsfc nsfs nsna nsnr nsra nsrc nssa nssc nssf nssr nsss raaf raan raas rac- raca racc racs rafa rafc raff rana ranc rann rans rara rarf rars rasa rasc rass rcac rcaf rcas rccc rccs rcfc rcnr rcsa rcsc rcss rffc rnaf rnas rncs rras rrfc rrna rrrr rsaa rsaf rscc rscn rscs rsfc rsna rsnn rsnr rssa sa-c saac saaf saan saar saas saca sacc sacn sacr sacs safa safc saff safr sana sann sanr sans sara sarc sarf sarn sarr sars sasa sasc sasf sass scaa scac scaf scan scar scas sccc sccs scfa scfc scna scnr scr- scra scrc scrn scrs scsa scsc scsn scsr sfar sfas sfca sfcc sfcs sffc sfra sfrc sfss snar snas snca sncc sncf snns snra snrs sraf sras srcc srfc srna srnn ssaa ssac ssan ssas ssca sscc sscs ssfc ssns ssra ssrc ssrs sssa sssc sssf ssss