a-a a-b a-c aaa aab aac aao aar aaw aax ab- aba abb abc abo abr abw abx ac- aca acb acc aco acr acw acx aoa aob aoc aoo aor aow aox ar- ara arb arc aro arr arw arx aw- awa awb awc awo awr aww ax- axa axo axr axx baa bab bac bao bar baw bax bba bbb bbc bbo bbr bbw bbx bca bcb bcc bco bcr bcx boa bob boc boo bor bow box bra brb bro brr brw brx bwa bwb bwc bwo bwr bxb bxo bxw bxx c-- caa cab cac cao car caw cax cba cbb cbc cbo cbr cbw cbx cca ccb ccc cco ccr ccw ccx co- coa cob coc coo cor cow cox cra crb crc cro crr crw crx cw- cwa cwb cwc cwo cwr cxc cxo cxr cxx oaa oab oac oao oar oaw oax ob- oba obb obc obo obr obw obx oc- oca ocb occ oco ocr ocw ocx oo- ooa oob ooc ooo oor oow oox or- ora orb orc oro orr orx owa owb owc owo oww ox- oxa oxb oxc oxo oxx ra- raa rab rac rao rar raw rax rba rbb rbc rbo rbr rbw rbx rca rcb rcc rco rcr rcw rcx roa rob roc roo ror row rox rra rrb rrc rrr rwa rwb rwc rwr rxr waa wab wac wao war waw wax wba wbb wbc wbo wbr wbw wbx wca wcb wcc wco wcr wcw wcx woa wob woc woo wor wow wox wr- wra wrc wro wrr wrw wrx wwa wwc wwo www wxc wxw xaa xac xar xbc xbr xbx xcb xcr xcx xoa xoc xoo xor xox xrc xrx xwa xxo xxx

a-wa aaaa aaab aaac aaar aaba aabb aabc aabw aaca aacb aacc aaco aacr aaoo aaow aara aarc aaro aaww abaa abab abac abar abaw abax abb- abba abbb abbo abbr abca abcb abcc abcr abcw aboa abob aboo abor abow abox abra abrc abro abwa abwr acaa acab acac acar acba acca accc acco acoa acor acow acr- acra acrc acro acrr acwa acww aoba aoca aora aorb arab arac arar araw arax arba arc- arca arco aroa arob aroo aror arow arr- arra arrc arro arrr arwa awac awar awoo awow awro awwa axar axo- axoa axxo ba-x baaa baar baba babb babo babr bac- baca bacc baco bar- bara barb barc baro barr barx baw- bbbb bbox bbrc bbwc bbwr bcaa bcar bcbc bcca bccc bcor bcra boab boac boar boba bobb bobo bobw boca boco boob booc boor boow boox bor- bora boro borr borw bowa bowr boxa brab brac brao braw brax brca brcb brcw broa brob broc broo bror brow brox brrr bwaa bwoc c-bo caaa caab caac caba cabo cac- caca cacc caco cacr cacw caor cara carb carc caro carr carx caxa cbac cbar cbax cbbc cbca cbcc cbcr cbox cbwa cbxa ccaa ccab ccac ccar ccba ccbc ccca cccb cccc ccob ccoc ccow ccra ccrc coax coba cobb cobo coca coco coob cor- cora corb corc coro corr coxa crab crac crar craw crax crbc crca crcc crcr crob croc croo cror crow cwac cwrw cxro cxxx oara obba obbo obor obox obra obro ocab ocac ocbc occa occc ocra ocro ocrr ooaa ooba oocr oooo oora orab orac orao orar orba orbb orbo orca orco oro- oror orra orro orwa orwo owar owow owwa oxa- oxo- oxox oxxo raab raba rabb rabo rac- raca racc raco raob raoc rara rarb raro rawa rawr raww raxa rbbb rbbr rcac rcbc rcbo rccb rccc roab roar rob- roba robb robo roca rocc roco roob roor roox rora rorc roro rowa rowb rowr roww roxa roxo rrrr waaa waac waao waar waaw waax waba wabb wabc wabo wabr wabw wabx waca wacb wacc waco wacx waob waoc waoo waor waow waox war- wara warb warc waro warr warw warx wawa wawb wawc wawo waxb waxo waxx wbaa wbab wbac wbar wbax wbbb wbbo wbbr wbbw wbbx wbca wbcb wbco wbcr wbcw wbcx wbob wboc wbor wbow wbox wbrb wbrc wbrr wbrw wbrx wbwb wbwc wbwo wbwx wbxb wbxr wbxx wcab wcao wcar wcba wcbc wcbr wcbw wcbx wcca wccb wccc wcco wccr wccw wccx wcoa wcob wcoc wcoo wcor wcox wcra wcrb wcrc wcro wcrr wcrw wcrx wcwa wcwb wcwc wcxo wcxr wcxx woaa woab woar woba wobb wobc wobo wobx woca wocb wocc woco wocr woob wooc woow wora worb worc woro worr worw worx wowb wowc wowo woww woxo woxr woxx wraa wrab wrac wrao wrar wraw wrax wrba wrbb wrbc wrbo wrbw wrbx wrca wrcb wrco wrcr wrcw wroa wrob wroc wroo wrow wrox wrra wrrb wrrc wrro wrrw wrrx wrwa wrwb wrwc wrwr wrxb wrxo wrxw wrxx wwab wwac wwax wwba wwbb wwbc wwbr wwca wwcb wwco wwcr wwcw wwor wwow wwox wwra wwrb wwrc wwrr wwrw wwrx wwwa wwwc wwwr wwww wwwx wxab wxac wxba wxbb wxbc wxbw wxbx wxcc wxco wxcr wxcw wxcx wxow wxox wxra wxrb wxrc wxro wxrr wxrx wxxb wxxc wxxx xaar xara xbar xbow xbox xbra xobc xoca xoco xoro xowa xoxo xwax xxxo xxxx

-aaa- a-box aaaoc aaarc aabaa aabba aabra aacbc abaab ababa abaca abaco abara abbac abbar abccc aboab abobo abora aborc abrac abrar abwab acaca acacb acar- acara accra acrab acro- acrob acrow ar-ab ara-c arab- araba arabo araca araco arara arawa araxa arbab arbar arbor arcoa arcor aroab aroar aroba aroor arora arrow awaba awara aworo babar babax baboo babra bacab bacao bacar bacaw bacax bacca bacco baoro bar-x baraa barab barac barao barar barba barca barco baro- baroa baroo baror barra barro barwa bawwa bo-bo boaco boaro bobac bobar boboc bobr bocac bocao bocar bocca bocoa bocor booba booco boora borac borax borba borbo borca boro- boroa boroo borow borox borra borro bowab bowow bowra braca bracc braco brobo broca brora broxa brrar brrrr c-a-c c-cor ca-ca caaba cabob caboc cabow cabra cacao caco- cacoa cacow caoba caraa