-ana aaaa aaac aaan aaar aaas aaca aacc aacn aacr aacs aana aara aarc aars aasa aasc aass acaa acac acan acar acas acca accc accs acr- acra acrc acrr acrs acsa acsc acss ana- anaa anac anan anar anas anca ancc anna anns anrc ansa arac aran arar aras arc- arca arcs arna arns arr- arra arrc arrr arrs ars- arsa arsc asaa asac asan asar asas asc- asca ascc ascr asnc asra asrc asrs assa assc assn assr asss caaa caac caan caas cac- caca cacc cacr cana canc cann cans cara carc carn carr cars casa casc casr cass ccaa ccac ccar ccas ccca cccc cccs ccna ccnc ccnr ccns ccra ccrc ccrs ccsa ccsn ccss cnaa cnac cnas cnna cnrc cnrr cnsa cnss crac cran crar cras crca crcc crcr crna crns crsa crss csaa csac csar csas cscc cscr cscs csra csrc csrs cssa cssr naaa naac naan naar naas naca nacc nacs nan- nana nann nans nara narc narn narr nars nas- nasa nasc nasr nass ncaa ncac ncar ncca nccc nccn nccr nccs ncna ncnc ncra ncrc ncsa ncsc ncss nnnn nnsa nnss nras nrca nrcs nrna nrrc nrsa nrsc nsaa nsac nsar nsca nscc nscs nsna nsnr nsra nsrc nssa nssc nssr nsss raan raas rac- raca racc racs rana ranc rann rans rara rars rasa rasc rass rcac rcas rccc rccs rcnr rcsa rcsc rcss rnas rncs rras rrna rrrr rsaa rscc rscn rscs rsna rsnn rsnr rssa sa-c saac saan saar saas saca sacc sacn sacr sacs sana sann sanr sans sara sarc sarn sarr sars sasa sasc sass scaa scac scan scar scas sccc sccs scna scnr scr- scra scrc scrn scrs scsa scsc scsn scsr snar snas snca sncc snns snra snrs sras srcc srna srnn ssaa ssac ssan ssas ssca sscc sscs ssns ssra ssrc ssrs sssa sssc ssss