a-a a-c a-t aaa aac aar aat aax ac- aca acc acr act acx ar- ara arc arr art arx at- ata atc atr att atx ax- axa axr axt axx c-- caa cac car cat cax cca ccc ccr cct ccx cra crc crr crt crx cta ctc ctr ctt ctx cxc cxr cxt cxx ra- raa rac rar rat rax rca rcc rcr rct rcx rra rrc rrr rrt rta rtc rtr rtt rtx rxr t-x taa tac tar tat tax tca tcc tcr tct tcx tra trc trr trt trx tta ttc ttr ttt ttx txt xaa xac xar xat xcr xcx xrc xrt xrx xtc xtr xtx xxx

aaaa aaac aaar aaca aacc aacr aact aara aarc aart aata aatc aatt ac-t acaa acac acar acat acca accc acct acr- acra acrc acrr acta actc actt arac arar arat arax arc- arca arct arr- arra arrc arrr arrt arta artc artr artx at-t at-x ataa atac atar atat atax atca atcc atcr atra atrc atrx atta attr axar axat caaa caac caat cac- caca cacc cacr cara carc carr cart carx cat- cata catc catt caxa ccaa ccac ccar ccat ccca cccc ccra ccrc ccrt cctc cctt crac crar crat crax crca crcc crcr crrt crtc ctca ctrc ctta cxxx raat rac- raca racc ract rara rata ratt raxa rcac rccc rctc rrat rrrr rtca rtcc taa- taar taat taca tacc tact tara tarc tarr tart tata tatr tatt tax- taxa taxt tcca tccc tctc traa trac trat trax trca trcc trra trtc trtr tttt txaa txtr xaar xact xara xcat xtar xtra xxxx

-aaa- aaarc aaata acaca acar- acara accra act-r actar actra ara-c araat araca arara arata araxa arct- art-x artar artat artax atara ataxx atrax attar attra axact c-a-c c-rat ca-ca caraa carac carat carra carrt carta cata- catax catra catta ccccc ra-ra racta ratra ratta raxar rccar rxart t-ara t-cat t-rac ta-ra ta-ta taart tacca tarac tarar tarat tarax tarra tarta tartt tataa tatar tatra tatta tcart traac tract trata tratt traxx ttttt xatar xatax

accara acrata aracar ararat aratta arcata artaxa artcar atacta atarax atarra atrata caraca caract carara carcar carcat carrat catcat caxaca caxata ccaatt ccatca cracca ratata ratcat rattar rattat tacata tarara tarata tarcat tarrar tartar tartr- tataat tatara tattat taxact tra-ra tracta x-cart xarxar

arataca attacca attract caracca carraca carract carrara cra-cra rat-tat ratatat tac-tac tacaca tat-tat xxxxxxx

artaxata attracta caracara cararara cataract catarata ra-ta-ta taratata tatarca tax-cart

aracataca artaxarta rat-a-tat

carratraca ratatattat

rat-tat-tat tat-tat-tat

tatararatata tattarrattat xxxxxxxxxxxx

rat-a-tat-tat

aaaaaaaaaaaaaaa ccccccccccccccc