-ana aaaa aaac aaaf aaan aaar aaca aacc aacf aacn aacr aact aafa aafc aaff aana aara aarc aart aata aatc aatf aatt ac-t acaa acac acan acar acat acca accc accf acct acfc acft acr- acra acrc acrr acta actc actf actt afaa afan afar afat afca afcc affa affc afft afr- afra afrc afta aftc aftn ana- anaa anac anan anar anat anca ancc anct anfa anna annt anrc ant- anta antr antt arac araf aran arar arat arc- arca arct arfa arfc arff arft arna arnt arr- arra arrc arrr arrt arta artc artr at-t ataa atac atan atar atat atca atcc atcf atcr atfc atna atra atrc atrn atta attn attr caaa caac caaf caan caat cac- caca cacc cacr cafa cafc caff cana canc cann cant cara carc carf carn carr cart cat- cata catc catf catt ccaa ccac ccaf ccar ccat ccca cccc cccf ccfa ccfc ccff ccna ccnc ccnf ccnr ccra ccrc ccrf ccrt cctc cctt cfaa cfac cfar cfca cfcf cfcn cffr cfnr cfra cfrn cfrt cfta cftc cftr cnaa cnac cnfa cnna cnrc cnrr cnrt cnta cntc cntf cntr crac craf cran crar crat crca crcc crcr crfc crna crrt crtc crtf ctan ctca ctcf ctfc ctrc ctrn ctta cttn faaa faac faan faca facc fact fafa fafc faff fana fanc fant fara farc farr fart fata fatc fatf fatt fcar fcat fcca fccf fcra ffar ffcc ffff ffrr fftf fnac fnar fnta frac fran frat frcc frcn frfc frta ft-c ftan ftfc naaa naac naan naar naat naca nacc nacf nafa nafc naff nan- nana nann nant nara narc narf narn narr nart nata natc natt ncaa ncac ncar ncat ncca nccc nccf nccn nccr ncct ncfc ncna ncnc ncra ncrc ncta nctc nctr nfaa nfat nfct nfff nfra nfta nftc nnnn nntn nrca nrfc nrna nrrc nrta ntcc ntfc ntrc nttr raaf raan raat rac- raca racc ract rafa rafc raff raft rana ranc rann rant rara rarf rata ratf ratt rcac rcaf rccc rcfc rcnr rctc rffc rftc rnaf rnnt rrat rrfc rrna rrrr rtan rtca rtcc rtfc taa- taaf taan taar taat taca tacc tact tafa tafc taff taft tana tann tant tara tarc tarf tarn tarr tart tata tatr tatt tcca tccc tcfc tcnn tctc tfca tftc tnca tncc tnfc traa trac traf tran trat trca trcc trfc trfr trna trra trtc trtr ttcn ttfa ttfc ttff ttfn tttt