-ana aaaa aaac aaan aaar aaca aacc aacn aacr aact aana aara aarc aart aata aatc aatt ac-t acaa acac acan acar acat acca accc acct acr- acra acrc acrr acta actc actt ana- anaa anac anan anar anat anca ancc anct anna annt anrc ant- anta antr antt arac aran arar arat arc- arca arct arna arnt arr- arra arrc arrr arrt arta artc artr at-t ataa atac atan atar atat atca atcc atcr atna atra atrc atrn atta attn attr caaa caac caan caat cac- caca cacc cacr cana canc cann cant cara carc carn carr cart cat- cata catc catt ccaa ccac ccar ccat ccca cccc ccna ccnc ccnr ccra ccrc ccrt cctc cctt cnaa cnac cnna cnrc cnrr cnrt cnta cntc cntr crac cran crar crat crca crcc crcr crna crrt crtc ctan ctca ctrc ctrn ctta cttn naaa naac naan naar naat naca nacc nan- nana nann nant nara narc narn narr nart nata natc natt ncaa ncac ncar ncat ncca nccc nccn nccr ncct ncna ncnc ncra ncrc ncta nctc nctr nnnn nntn nrca nrna nrrc nrta ntcc ntrc nttr raan raat rac- raca racc ract rana ranc rann rant rara rata ratt rcac rccc rcnr rctc rnnt rrat rrna rrrr rtan rtca rtcc taa- taan taar taat taca tacc tact tana tann tant tara tarc tarn tarr tart tata tatr tatt tcca tccc tcnn tctc tnca tncc traa trac tran trat trca trcc trna trra trtc trtr ttcn tttt