a-a a-b a-c a-t a-z aaa aab aac aao aar aat aaz ab- aba abb abc abo abr abt abz ac- aca acb acc aco acr act acz aoa aob aoc aoo aor aot ar- ara arb arc aro arr art arz at- ata atb atc ato atr att atz az- aza azb azo azt azz baa bab bac bao bar bat baz bba bbb bbc bbo bbr bbt bca bcb bcc bco bcr bct bcz boa bob boc boo bor bot boz bra brb bro brr brt brz bta btb btc bto btr btt btz bza bzo bzr bzz c-- caa cab cac cao car cat caz cba cbb cbc cbo cbr cbt cbz cca ccb ccc cco ccr cct ccz co- coa cob coc coo cor cot coz cra crb crc cro crr crt crz cta ctb ctc cto ctr ctt ctz cz- czc czo czt oaa oab oac oao oar oat ob- oba obb obc obo obr obt oc- oca ocb occ oco ocr oct ocz oo- ooa oob ooc ooo oor oot or- ora orb orc oro orr ort orz ot- ota otb otc oto otr ott otz oza ozo ozt ozz ra- raa rab rac rao rar rat raz rba rbb rbc rbo rbr rbt rca rcb rcc rco rcr rct roa rob roc roo ror rot roz rra rrb rrc rrr rrt rta rtb rtc rto rtr rtt rtz rza rzb rzo taa tab tac tao tar tat taz tba tbb tbc tbo tbr tbt tbz tca tcb tcc tco tcr tct to- toa tob toc too tor tot toz tra trb trc tro trr trt trz tta ttb ttc tto ttr ttt tza zaa zab zac zao zar zat zaz zbb zbc zbr zbt zco zo- zoa zob zoc zoo zor zot zro zta ztr zzr zzt zzz

aaaa aaab aaac aaar aaba aabb aabc aabt aaca aacb aacc aaco aacr aact aaoo aara aarc aaro aart aata aatc aatt abaa abab abac abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abcr abct aboa abob aboo abor abot abra abrc abro abta abza ac-t acaa acab acac acar acat acba acca accc acco acct acoa acor acot acr- acra acrc acro acrr acta actc acto actt aoba aoca aora aorb aort aotc arab arac arar arat arba arc- arca arco arct aroa arob aroo aror aroz arr- arra arrc arro arrr arrt arta artc arto artr artz arza arzo at-t ataa atab atac atar atat atca atcc atco atcr atob atoc ator atot atoz atra atrc atro atta atto attr aza- azab azar azat azaz azca azo- azoo azor azot azra azza azzo baaa baar baat baaz baba babb babo babr bac- baca bacc baco bact bacz bar- bara barb barc baro barr bart barz bata batc bato batt batz baza bazo bbbb bbrc bcaa bcar bcat bcbc bcca bccc bcor bcoz bcra bctc boab boac boar boat boaz boba bobb bobo boca boco boob booc boor boot booz bor- bora boro borr bort borz bota botb boto bott boza bozo brab brac brao brat braz brca brcb broa brob broc broo bror brot broz brrr brtc brza btaa btcc btob btor btrc btrt bttb bzzt bzzz c-bo caaa caab caac caat caba cabo cac- caca cacc caco cacr caor caoz cara carb carc caro carr cart cat- cata catb catc cato catt catz caza cazo cbac cbar cbat cbbc cbca cbcc cbcr cbct cbot cbrt cbta cbtc ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccob ccoc ccra ccrc ccrt cctb cctc cctt coat coba cobb cobo coca coco coct coob coot cor- cora corb corc coro corr cort cota cotb cotc coto cott cozz crab crac crar crat crbc crca crcc crcr crcz crob croc croo cror crot croz crrt crtc ctab ctba ctca ctor ctot ctrc ctta czar oara obba obbo obor obot obra obro ocab ocac ocat ocbc occa occc occt ocra ocro ocrr oct- octa octo ooaa ooba oocr oooo oora oort ootb orab orac orao orar orat orba orbb orbo orca orco oro- oror orot oroz orra orro orta ortc orto orzo otac otar oto- otoo otor otra otro otta otto ozar raab raat raaz raba rabb rabo rac- raca racc raco ract raob raoc rara rarb raro rarz rata rato ratt ratz raza razo razr razz rbbb rbbr rcac rcbc rcbo rccb rccc rctc roab roar roat rob- roba robb robo robt roca rocc roco roob roor root rooz rora rorc roro rort rota rotc roto rotr rott roza rozz rrat rrrr rtca rtcc rzab taa- taar taat taba tabb tabc tabo taca tacc taco tact taoa taor tara tarb tarc taro tarr tart tata tatb tato tatr tatt tatz taza tazo tazr tazz tbar tbca tbcb tbcc tbrb tbta tcca tccc tctc toab toat toba tobo tobt toca toco tooa toor toot tora torc toro torr tort tota totc toto totr tott toza tozo traa trab trac trao trat traz trca trcc troa troc troo trot trra trtc trtr ttab ttbb tttt tzar tzzt z-ro zaar zaat zaba zabo zabr zaca zara zarb zaro zarr zaza zbar zcar zcta zoar zoat zobo zoco zoo- zoot zora zorb zorc zoro zort zota zott zotz zoza zozo ztoa zzzz

-aaa- aaaoc aaarc aaata aabaa aabba aabra aacbc abaab ababa abaca abaco abara abaza abbac abbar abbat abbot abccc aboab aboat abobo aboot abora aborc abort abott abrac abrar abtaa abtao abtar abzac abzar acaca acacb acar- acara accra acoat acoot acrab acro- acrob act-r actar actor actra actto aort- aorta ar-ab ara-c araat arab- araba arabo araca araco araoz arara arata aratz arbab arbar arbat arbaz arbor arbot arcoa arcor arcot arct- arcto aroab aroar aroba aroor aroot arora arroz artar artat arto- artoo artot arzac arzat arzoo ataco atara atbar atbat atoot atora atoto atrab atro- atroa atrot attar atto- attra azaca azara azata azbar azrac azrar azrat aztar baart baata babar baboo babot babra bacab bacao bacar bacca bacco bacot