cfae cfar cfbc cfbr cfbs cfca cfcb cfcf cfcs cffb cffr cfra cfrb cfre cfsa cfse ckac ckbc ckbe ckck ckcs cker ckfr ckrc cksa cksb crab crac craf crar cras crbc crca crcc crce crcr cre- crea creb crec cree cres crfc crfs crkc crsa crss csaa csab csac csak csar csas csbf cscb cscc csce cscf cscr cscs csea csec csee cser csfc csfr cska csks csra csrc csrs cssa csse cssr eaaf eaba eaca eacc eaec eafb eara earb eare ears easa ease ebac ebba ebbc ebbr ebbs ebcc eber ebes ebfc ebsa ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce ecef eces ecfa ecfc ecfr ecfs ecka ecks ecra ecrc ecrf ecrr ecsa ecsc ecse ecss eeca eecs eeea eeee eees eefa eefe eeka eeke eeks eera eerc eers eese eesk efab efas efbr efca efes effa effs efke efsa eka- ekab ekeb ekek eker ekes ekfc ekka eraf eras erba erbb erbe erca ercc erce ereb erec erer eres erfc erfs erke erks erra errc erre errs ersa erse esab esac esar esas esba esbs esca escb esce escr escs esea esee esek eser eses esfs eska eske esks esra essa esse f--k faaa faac faas faba fabe fabs faca facc face fack facs faeb faes fafa fafc fafe faff fake fara farb farc fare fark farr fars fasa fasc fase fass fbar fbrs fcab fcar fcas fcba fcbs fcca fccf fces fcra fcsc feaf feak fear feas feba febs fece feck feeb feek feer fees fefc fefe feff feke fera ferb ferc fere ferk ferr fers fesa fese fess ffar ffcc ffee ffff ffrr ffsa ffss fkab frab frac frae frak fras frbc frcc frea free fres frfc frsb frsc fsas fscb fscc fsck fsec fsra fssa fssc fssf kaaa kaab kaaf kaak kaar kaas kaba kabb kabc kabe kabf kabr kacb kacc kace kacs kaer kaes kafa kafc kafe kaff kafr kafs kaka kakc kake kakk kaks kara karb kare karf kark karr kars kas- kasa kasb kasc kase kasf kask kasr kass kbaa kbab kbac kbae kbak kbar kbas kbba kbbb kbbc kbbe kbbf kbbk kbbr kbbs kbca kbcb kbce kbck kbcr kbcs kbeb kbec kbee kbef kbek kber kbes kbfb kbfc kbff kbfk kbfr kbfs kbkb kbkf kbkk kbkr kbra kbrb kbrc kbre kbrf kbrk kbsa kbsb kbsk kbsr kbss kcaa kcab kcac kcar kcas kcba kcbc kcbf kcbk kcbr kcbs kcca kccb kccc kcck kccr kcea kceb kcec kcee kcfa kcfb kcfc kckc kckf kckk kckr kcrc kcrr kcrs kcsa kcsb kcsc kcse kcsf kcsr kcss kea- keak kear keas keba kebb kebc kebe kebr keca keck kecr keef keek keer kees kefa kefb kefc keff kefr kefs keka kekb kekc keke keks ker- kera kerb kerc kere kerf kerk kerr kers kesa kesb kesc kesk kesr kess kfab kfac kfar kfbc kfbk kfcf kfcr kfcs kfeb kfer kffa kffb kfff kffk kfka kfkb kfra kfrc kfre kfrr kfrs kfsa kfse kfsk kfsr kkaa kkac kkar kkba kkbb kkbe kkbr kkbs kkcb kkck kkcr kkcs kkea kkfr kkfs kkkk kkrb kkrc kkre kkrf kkrk kkrr kkrs kksa kkse kksf kksr kkss krab krac krae krak krar kras krba krbb krbe krbk krbr krca krcb krcc krce krcs krea kreb krec kree kref krek kres krfc krfe krff krfs krka krkc krke krkk krkr krks krrb krrc krre krrf krrk krrr krrs krsa krsc krse krsf krsk krsr krss ksab ksac ksaf ksak ksar ksas ksba ksbc ksbr ksbs ksca kscb ksce ksck kscr kscs ksea ksec ksee ksek kser ksfa ksfb ksfc ksfe ksfr kska kskb kske kskf kskk kskr ksks ksra ksrb ksrf ksrr ksrs kssa ksse kssr ksss raab raaf raak raas raba rabb rabe rabk rabs rac- raca racc race rack racs raec raef raer raes rafa rafc rafe raff raka rake rakk rara rarb rare rarf rark rars rasa rasc rase rask rass rbaf rbbb rbbr rbbs rbss rcac rcaf rcas rcbc rccb rccc rccs rcfc rcsa rcsc rcss rea- reac reae reaf reak rear reas reba rebb rebe rebk rebs reca recc rece reck recr recs reeb reef reek rees refe reff refr refs reka reke reks rera rere rers resa rese ress rfae rfef rffc rkkf rkss rras rrfc rrrr rsaa rsaf rscc rscs rsee rsfc rsre rssa sa-c saab saac saae saaf saak saar saas saba sabb sabc sabe sabr sabs saca sacc sace sack sacr sacs saeb saek saer saes safa safb safc safe saff safr saka sakb sake sakk saks sara sarc sare sarf sark sarr sars sasa sasc sase sasf sask sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbef sber sbfc sbrk sbsa sbse scaa scab scac scaf scak scar scas scba sccc scce sccs scea scec scee scer scfa scfc scfe sck- scr- scra scrc scre scrs scsa scsc scsr se-c se-e se-f se-k se-s seaa seab seac seaf seak sear seas seba sebe sebs sec- seca secc sece seck secr secs seea seeb seec seef seek seer sees sefa seff seka seke sekk sera serb serc sere serf serk serr sers sesa sesc sese sess sfar sfas sfba sfbc sfca sfcc sfcs sfer sffc sfra sfrc sfss skab skac skaf skar skee sker skes skfc skra skss sraf sras srbc srcc sreb srec sres srfc ssaa ssab ssac ssas ssbr ssca sscc ssce sscs ssec ssee sses ssfc ssra ssrc ssrs sssa sssb sssc sssf ssss

-aaa- a-sea aaaas aaace aaaee aaarc aaasa aaass aabaa aabba aabfs aabra aacbc aaces aacsa aacsb aacss aaeaf aaker aakre aasee aasra abaab ababa ababe ababs abaca aback abacs abaer abaka abake abara abare abasa abase abask abass abbac abbar abbas abbes abbrs abcas abccc abear abeba abebe abece abeer abees abekr abera abere aberr abfab abffs abkar abrac abrak abrar abras abrek abres absar absee acaca acacb acack acake acar- acara acare acars acase acass accas accra aceae acera acerb acers acfas ackee acker acrab acrea acree acres aeaea aebbe aebsf aeres aface afara afare afars afcea afcec