a-a a-b a-c a-z aaa aab aac aag aak aao aar aaz ab- aba abb abc abg abk abo abr abz ac- aca acb acc acg ack aco acr acz ag- aga agb agc agg agk ago agr agz aka akb akc akg akk ako akr aoa aob aoc aog aok aoo aor ar- ara arb arc arg ark aro arr arz az- aza azb azg azo azz baa bab bac bag bak bao bar baz bba bbb bbc bbg bbk bbo bbr bca bcb bcc bcg bck bco bcr bcz bga bgb bgc bgg bgk bgo bgr bgz bka bkb bkc bkg bkk bko bkr boa bob boc bog bok boo bor boz bra brb brg brk bro brr brz bza bzo bzr bzz c-- caa cab cac cag cak cao car caz cba cbb cbc cbg cbk cbo cbr cbz cca ccb ccc ccg cck cco ccr ccz cga cgb cgc cgg cgo cgr cka ckb ckc cko co- coa cob coc cog cok coo cor coz cra crb crc crg crk cro crr crz cz- czc czk czo gaa gab gac gag gak gao gar gaz gba gbc gbg gbk gbo gbr gbz gca gcb gcc gcg gck gco gcr gga ggb ggc ggg ggo ggr ggz gka gkb gko goa gob goc gog gok goo gor goz gra grb grc grg grk gro grr gza gzo gzr k-z ka- kaa kab kac kag kak kao kar kaz kba kbb kbc kbk kbo kbr kbz kca kcb kcc kcg kck kcr kga kgb kgc kgo kkb kkc kkk kkr koa kob koc kog kok koo kor koz kra krc krg krk kro krr kzo oaa oab oac oag oak oao oar ob- oba obb obc obg obk obo obr oc- oca ocb occ ocg ock oco ocr ocz oga ogc ogg ogo oka okb okc okg okk oko okr oo- ooa oob ooc oog ook ooo oor or- ora orb orc org ork oro orr orz oza ozo ozz ra- raa rab rac rag rak rao rar raz rba rbb rbc rbg rbk rbo rbr rca rcb rcc rcg rco rcr rga rgb rgc rgg rgk rgo rgr rkb rkc rkg rkk rko rkz roa rob roc rog rok roo ror roz rra rrb rrc rrg rrk rrr rza rzb rzo z-g zaa zab zac zag zak zao zar zaz zbb zbc zbr zco zgb zgg zka zo- zoa zob zoc zog zok zoo zor zro zzr zzz

a-ak a-ok aaaa aaab aaac aaar aaba aabb aabc aaca aacb aacc aack aaco aacr aaka aaoo aara aarc aaro abaa abab abac abag abak abar abb- abba abbb abbo abbr abca abcb abcc abcr aboa abob abok aboo abor abra abrc abro abza acaa acab acac acag acar acba acca accc acco acga acgr acoa acog acor acr- acra acrc acro acrr ag-o agac agag agao agar agaz agba agbo agca agcc agco agga agob agog agoo agoz agra agro akaa akao akar akca akka akko akok akr- akra aoba aoca aora aorb arab arac arag arak arar arba arc- arca arco arga argb argo arka arko aroa arob aroo aror aroz arr- arra arrc arrg arrk arro arrr arza arzo aza- azab azar azaz azca azo- azog azoo azor azra azza azzo baaa baak baar baaz baba babb babo babr bac- baca bacc back baco bacz baga bagg bago bak- baka bako bakr bar- bara barb barc barg bark baro barr barz baza bazo bbbb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcor bcoz bcra bgca boab boac boag boak boar boaz boba bobb bobo boca bock boco boga bogg bogo boka boko boob booc boog book boor booz bor- bora borg bork boro borr borz boza bozo brab brac brag brak brao braz brca brcb brka brkb broa brob broc brog brok broo bror broz brrr brza bzrk bzzz c-bo caaa caab caac caba cabg cabo cac- caca cacc cack caco cacr caga cagg cago cagr cagz caka caor caoz cara carb carc cark caro carr caza cazo cbac cbar cbbc cbca cbcc cbcr cbga cbgb cbka cbkg cbko cbkr ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc ccga ccgc ccob ccoc ccra ccrc ccrg cgac cgcc cgcg cgro ckac ckbc ckck ckco ckga ckgo ckoa ckob ckoc ckoo ckor ckrc coag coak coba cobb cobo coca cock coco cogo cok- coka coko coob cook cor- cora corb corc corg cork coro corr cozz crab crac crag crar crbc crca crcc crcr crcz crkc crob croc crok croo cror croz czar gaar gaba gabb gabo gabr gabz gack gacz gaga gagg gago gara garb garg garo garr garz gaza gbag gbbo gc-c gcaa gcbc gccc gcoa gcrg gggg goar goba gobo goca gocr goga gogo goog gook goor gora gorb gorg goro gorr gorz goza gozo grab grac graz grbr grcc grob groc grog grok groo gror grrr kaaa kaab kaag kaak kaar kaba kabb kabc kabg kabo kabr kabz kacb kacc kaco kacz kag- kaga kagb kagc kagg kago kagr kagz kaka kakc kakk kako kaoa kaoc kaog kaok kaor kara karb karg kark karo karr karz kaza kazc kazg kazo kazr kazz kbaa kbab kbac kbak kbar kbaz kbba kbbb kbbc kbbg kbbk kbbo kbbr kbbz kbca kbcb kbck kbco kbcr kbcz kbga kbgb kbgg kbgo kbgr kbgz kbkb kbkg kbkk kbko kbkr kbkz kboa kbob kboc kbok kboo kboz kbra kbrb kbrc kbrg kbrk kbro kbrz kbzc kbzo kbzz kcaa kcab kcac kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcgc kcgr kckc kckk kcko kckr kckz kcob kcog kcor kcoz kcrc kcrg kcro kcrr kcrz kczo kczz kgab kgac kgak kgba kgbb kgbc kgbr kgcb kgcc kgcr kgga kggg kggo kggr kgor kgoz kgra kgrb kgrc kgrg kgrk kgro kgrr kgrz kkaa kkac kkag kkar kkba kkbb kkbg kkbo kkbr kkbz kkcb kkck kkco kkcr kkgb kkgo kkgr kkkk kkoa kkob kkoo kkor kkoz kkrb kkrc kkrk kkro kkrr kkrz kkzz koab koac koak koar koaz