-al -ol a-a a-b a-c a-z aaa aab aac aal aao aar aau aaz ab- aba abb abc abl abo abr abu abz ac- aca acb acc acl aco acr acu acz al- ala alb alc all alo alr alu alz aoa aob aoc aol aoo aor aou ar- ara arb arc arl aro arr aru arz au- aua aub auc aul auo aur auz az- aza azb azo azu azz b-u baa bab bac bal bao bar bau baz bba bbb bbc bbl bbo bbr bbu bca bcb bcc bcl bco bcr bcu bcz bla blb blc bll blo blr blu blz boa bob boc bol boo bor bou boz bra brb brl bro brr bru brz bua bub buc bul buo bur buu buz bza bzo bzr bzu bzz c-- caa cab cac cal cao car cau caz cba cbb cbc cbl cbo cbr cbu cbz cca ccb ccc ccl cco ccr ccu ccz cl- cla clb clc cll clo clr clu clz co- coa cob coc col coo cor cou coz cra crb crc crl cro crr cru crz cua cub cuc cul cuo cur cuu cuz cz- czc czo la- laa lab lac lal lao lar lau laz lba lbb lbc lbl lbo lbr lbu lca lcb lcc lcl lco lcr lcu lla llb llc lll llo llr llu llz loa lob loc lol loo lor lou loz lra lrb lrc lro lrr lru lrz lua lub luc lul luo lur luu luz lzo lzr lzu oaa oab oac oal oao oar oau ob- oba obb obc obl obo obr obu oc- oca ocb occ ocl oco ocr ocu ocz ola olb olc oll olo olu oo- ooa oob ooc ool ooo oor or- ora orb orc orl oro orr oru orz ou- oua ouc oul ouo our oza ozo ozu ozz ra- raa rab rac ral rao rar rau raz rba rbb rbc rbl rbo rbr rbu rca rcb rcc rcl rco rcr rcu rla rlc rll rlo rlr rlu roa rob roc rol roo ror rou roz rra rrb rrc rrl rrr rru rua rub ruc ruo rur ruu ruz rza rzb rzo ua- uaa uab uac ual uao uar uau uaz uba ubb ubc ubl ubo ubr ubu uca ucb ucc ucl uco ucr ucu ula ulb ulc ull ulo ulr ulu uoa uob uoc uol uoo uor ur- ura urb urc url uro urr uru urz uua uuc uur uuu uza uzb uzo uzu zaa zab zac zao zar zaz zbb zbc zbl zbr zcl zco zla zlr zo- zoa zob zoc zol zoo zor zou zrl zro zub zuc zul zur zuz zzr zzz

aaaa aaab aaac aaal aaar aaba aabb aabc aabl aaca aacb aacc aacl aaco aacr aacu aala aalc aall aalo aalu aaoo aara aarc aaro aaru abaa abab abac abal abar abau abb- abba abbb abbo abbr abca abcb abcc abcl abcr abla ablo aboa abob abol aboo abor abou abra abrc abro abua abul abza abzu acaa acab acac acar acba acbl acca accc acco accu acla aclc aclr aclu acoa acol acor acou acr- acra acrc acro acrr acu- acul acuo acur alaa alac alal alao alar alau alaz alb- alba albc albo albu alca alcc alco all- alla alll allo allr allu aloa aloc alol aloo alor alou alro alua alur alza aoba aoca aola aora aorb aoul arab arac aral arar arau arba arc- arca arco arla arlo aroa arob aroo aror aroz arr- arra arrc arro arrr arru arua arub arul arza arzo arzu auaa auca aul- aula aull aulo aulu auol aur- aura auro aza- azab azal azar azaz azca azo- azoo azor azra azua azul azur azza azzo baaa baal baar baaz baba babb babo babr babu bac- baca bacc baco bacz bala balc ball balo balu baol bar- bara barb barc baro barr baru barz bau- baul baur baza bazo bbau bbbb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcor bcoz bcra bcru bcuc blaa blab blac blau blaz blcu blob bloc bloo blou blrc blub blur boab boac boal boar boaz boba bobb bobo bobu boca boco bocu bola boll bolo bolu boob booc bool boor booz bor- bora boro borr boru borz boua boul bour boza bozo brab brac brao brau braz brca brcb broa brob broc brol broo bror brou broz brrr bruc bruz brza bual buar buba bubb bubo bubu buca bucc buco bucu bucz bula bulb bull bulu bulz buol bur- bura burb burl buro burr buru burz buuz buza buzz bzou bzzz c-bo caaa caab caac caal caba cabo cabu cac- caca cacc caco cacr cala calc call calo calu caol caor caoz cara carb carc carl caro carr cauc caul cauo caza cazo cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbcu cblb cblc cbol cbrl ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccl cccu ccla cclc ccob ccoc ccra ccrc ccrl ccuc clab clar clau clob cloo clor clou cloz clra clro club coal coba cobb cobo cobu coca coco cocu col- cola colb coll colo colu coob cool cor- cora corb corc corl coro corr coua coub coul cour cozz crab crac crar crau crbc crbu crca crcc crcr crcz crob croc crol croo cror croz crub cruz cuau cub- cuba cubb cuca cucc cula culb culc cull culo cura curb curl curo curr cuzo czar laaa laac laal laar laba labo labr labu laca lacc lacl laco lacu lala lall lalo lalu laou lara larb larc larr laru larz laub laul laur laza lazo lazu lbar lbcc lblr lboz lcac lcbc lcca lccc lcor lcra lcrl llao llcc lllc llll lloa lloc lloo loac loar lob- loba lobb lobo loca locc loco locu lola loll lolo lolz loob looc lool loor looz lora loro loul lour louu loza lrac lral lrba lroc lrrc lrrr luau luaz luba luca lula lull lulu lulz lura lurz luua luza oaau oall oara obal obba obbo obla oblu obol obor