a-a a-b a-c a-z aaa aab aac aao aar aau aaz ab- aba abb abc abo abr abu abz ac- aca acb acc aco acr acu acz aoa aob aoc aoo aor aou ar- ara arb arc aro arr aru arz au- aua aub auc auo aur auz az- aza azb azo azu azz b-u baa bab bac bao bar bau baz bba bbb bbc bbo bbr bbu bca bcb bcc bco bcr bcu bcz boa bob boc boo bor bou boz bra brb bro brr bru brz bua bub buc buo bur buu buz bza bzo bzr bzu bzz c-- caa cab cac cao car cau caz cba cbb cbc cbo cbr cbu cbz cca ccb ccc cco ccr ccu ccz co- coa cob coc coo cor cou coz cra crb crc cro crr cru crz cua cub cuc cuo cur cuu cuz cz- czc czo oaa oab oac oao oar oau ob- oba obb obc obo obr obu oc- oca ocb occ oco ocr ocu ocz oo- ooa oob ooc ooo oor or- ora orb orc oro orr oru orz ou- oua ouc ouo our oza ozo ozu ozz ra- raa rab rac rao rar rau raz rba rbb rbc rbo rbr rbu rca rcb rcc rco rcr rcu roa rob roc roo ror rou roz rra rrb rrc rrr rru rua rub ruc ruo rur ruu ruz rza rzb rzo ua- uaa uab uac uao uar uau uaz uba ubb ubc ubo ubr ubu uca ucb ucc uco ucr ucu uoa uob uoc uoo uor ur- ura urb urc uro urr uru urz uua uuc uur uuu uza uzb uzo uzu zaa zab zac zao zar zaz zbb zbc zbr zco zo- zoa zob zoc zoo zor zou zro zub zuc zur zuz zzr zzz

aaaa aaab aaac aaar aaba aabb aabc aaca aacb aacc aaco aacr aacu aaoo aara aarc aaro aaru abaa abab abac abar abau abb- abba abbb abbo abbr abca abcb abcc abcr aboa abob aboo abor abou abra abrc abro abua abza abzu acaa acab acac acar acba acca accc acco accu acoa acor acou acr- acra acrc acro acrr acu- acuo acur aoba aoca aora aorb arab arac arar arau arba arc- arca arco aroa arob aroo aror aroz arr- arra arrc arro arrr arru arua arub arza arzo arzu auaa auca aur- aura auro aza- azab azar azaz azca azo- azoo azor azra azua azur azza azzo baaa baar baaz baba babb babo babr babu bac- baca bacc baco bacz bar- bara barb barc baro barr baru barz bau- baur baza bazo bbau bbbb bbrc bcaa bcar bcbc bcca bccc bcor bcoz bcra bcru bcuc boab boac boar boaz boba bobb bobo bobu boca boco bocu boob booc boor booz bor- bora boro borr boru borz boua bour boza bozo brab brac brao brau braz brca brcb broa brob broc broo bror brou broz brrr bruc bruz brza buar buba bubb bubo bubu buca bucc buco bucu bucz bur- bura burb buro burr buru burz buuz buza buzz bzou bzzz c-bo caaa caab caac caba cabo cabu cac- caca cacc caco cacr caor caoz cara carb carc caro carr cauc cauo caza cazo cbac cbar cbbc cbca cbcc cbcr cbcu ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccu ccob ccoc ccra ccrc ccuc coba cobb cobo cobu coca coco cocu coob cor- cora corb corc coro corr coua coub cour cozz crab crac crar crau crbc crbu crca crcc crcr crcz crob croc croo cror croz crub cruz cuau cub- cuba cubb cuca cucc cura curb curo curr cuzo czar oaau oara obba obbo obor obra obro ocab ocac ocbc occa occc ocra ocro ocrr ocur ooaa ooba oocr oooo oora orab orac orao orar orba orbb orbo orbu orca orco oro- oror oroz orra orro orub orzo orzu ouac oucc our- oura ouro ouu- ouza ouzo ozar raab raaz raba rabb rabo rabu rac- raca racc raco racu raob raoc rara rarb raro rarz raua raub rauc raza razo razr razz rbbb rbbr rcac rcbc rcbo rccb rccc roab roar rob- roba robb robo robu roca rocc roco roob roor rooz rora rorc roro roru roua roub rouz roza rozz rrrr ruba rubb rubu ruca rura rurc ruro ruru ruza rzab uabc uaca uaoc uarc uaru uaua ubac ubar ubba ubbo uboc ubra ucar ucbc ucca ucoz ucrc ucua uocc uor- urac urao urau urba urca uro- uroa uroo urra urur uruz urza uuoc uuuu z-ro zaar zaba zabo zabr zabu zaca zara zarb zaro zarr zaru zaur zaza zazu zbar zcar zoar zobo zoco zoo- zora zorb zorc zoro zouc zoza zozo zozu zubo zubr zubu zuoz zura zurb zurr zuru zuzu zzzz

-aaa- aaaoc aaarc aabaa aabba aabra aacbc aarau abaab ababa ababu abaca abaco abara abaru abaza abazu abbac abbar abbou abbur abccc aboab abobo abora aborc abrac abrar abura aburr abuzz abzac abzar acaca acacb acar- acara acaua accra accub accur acou- acoua acouo acrab acro- acrob acuba acura ar-ab ara-c arab- araba arabo araca araco araoz arara araru arbab arbar arbaz arbor arcoa arcor aroab aroar aroba aroor arora arrau arrou arroz arrua aruaa aruac aruba arura aruru arzac arzoo arzua aurar auro- auroa auror aurra azabu azaca azara azaru azbar azour azrac azrar azrou azura azuro babar babau baboo babou babra babur bacab bacao bacar bacca bacco bacu bacza baoro baraa barab barac barao barar baraz barba barbu barca barco baro- baroa baroo baror barra barro barru barua baruc barza barzu baubo baura bauru bauza bazac bazar bazoo bazou bo-bo boaco boaro bobac bobar boboc bobr bocac bocao bocar bocca bocoa bocor booba booco boora booru booza borac borau borba borbo borca borcz boro- boroa boroo borou borra borro borza borzu bouar bouba bouca boura bouza bozab bozar bozoo braca bracc braco braza brazo brobo broca brora brrar brrrr bruzz bubba bucca bucco bucur buraa burao burca burcu buroo buroz burra burro burru buruc buzar buzau buzza buzzr bzura c-a-c c-cor