a-a a-b a-c aaa aab aac aad aak aar aas aaw ab- aba abb abc abd abk abr abs abw ac- aca acb acc acd ack acr acs acw ad- ada adb adc add adk adr ads adw aka akb akc akd akk akr aks akw ar- ara arb arc ard ark arr ars arw as- asa asb asc asd ask asr ass asw aw- awa awb awc awd awk awr aws aww baa bab bac bad bak bar bas baw bba bbb bbc bbd bbk bbr bbs bbw bca bcb bcc bcd bck bcr bcs bda bdb bdc bdd bdk bdr bds bdw bka bkb bkc bkk bkr bks bkw bra brb brd brk brr brs brw bsa bsb bsc bsd bsk bsr bss bsw bwa bwb bwc bwd bwk bwr bws c-- caa cab cac cad cak car cas caw cba cbb cbc cbd cbk cbr cbs cbw cca ccb ccc ccd cck ccr ccs ccw cda cdb cdc cdd cdk cdr cds cdw cka ckb ckc ckd cks ckw cra crb crc crd crk crr crs crw csa csb csc csd csk csr css csw cw- cwa cwb cwc cwd cwk cwr cws daa dab dac dad dak dar das daw dba dbb dbc dbd dbk dbr dbs dca dcb dcc dcd dck dcr dcs dcw dda ddb ddc ddd ddk ddr dds ddw dka dkb dkc dkk dkr dks dkw dra drb drc drd drk drr drs drw dsa dsb dsc dsd dsk dsr dss dsw dwa dwb dwc dwr dws dww ka- kaa kab kac kad kak kar kas kaw kba kbb kbc kbd kbk kbr kbs kbw kca kcb kcc kcd kck kcr kcs kda kdb kdc kdk kdr kds kkb kkc kkk kkr kks kra krc krd krk krr krs krw ksa ksb ksc ksd ksk ksr kss ksw kw- kwa kwc kwd kwk kws kww ra- raa rab rac rad rak rar ras raw rba rbb rbc rbd rbk rbr rbs rbw rca rcb rcc rcd rcr rcs rcw rda rdb rdc rdd rdr rds rkb rkc rkk rks rra rrb rrc rrd rrk rrr rrs rsa rsb rsc rsd rsk rsr rss rsw rwa rwb rwc rwd rwr rws saa sab sac sad sak sar sas saw sba sbb sbc sbd sbk sbr sbs sbw sca scb scc scd sck scr scs scw sda sdb sdc sdd sdk sdr sds sdw sk- ska skb skc skd skk skr sks skw sr- sra srb src srd srk srr srs srw ss- ssa ssb ssc ssd ssk ssr sss ssw swa swb swc swd swk swr sws waa wab wac wad wak war was waw wba wbb wbc wbd wbr wbs wbw wca wcb wcc wcd wck wcr wcs wcw wda wdb wdc wdr wds wka wkb wkc wkd wkr wks wkw wr- wra wrc wrd wrk wrr wrs wrw wsa wsb wsc wsd wsk wsr wss wsw wwa wwc wwd www

a-ak a-wa aaaa aaab aaac aaad aaar aaas aaba aabb aabc aabd aabw aaca aacb aacc aacd aack aacr aacs aada aadc aads aaka aara aarc aard aars aasa aasc aasd aass aaww abaa abab abac abad abak abar abas abaw abb- abba abbb abbr abbs abca abcb abcc abcd abcr abcs abcw abda abra abrc abrs abs- absa absd abss absw abwa abwr acaa acab acac acad acar acas acba acca accc accd accs acda acdb acdc acds ackd acks ackw acr- acra acrc acrr acrs acsa acsc acsd acss acsw acwa acww adaa adab adac adad adak adar adas adaw adba adbc adcc adcs adda addc addd addr adds adra adrs adsa adsr adss adwa akaa akar akas akca akka akr- akra aksa akwa arab arac arad arak arar aras araw arba arbs arc- arca arcs arda ardc ards arka arks arr- arra arrc arrk arrr arrs ars- arsa arsc arsd arsk arwa asaa asab asac asad asak asar asas asba asc- asca ascb ascc ascr ascw asda asds aska askr asks asra asrc asrs assa assc assd assk assr asss awac awad awar awas awds awka awsk awss awwa awws baaa baad baak baar baas baba babb babr babs bac- baca bacc back bacs bada badb badd badr bads bak- baka bakr baks bar- bara barb barc bard bark barr bars basa basc bask bass baw- bawd bawk baws bbad bbas bbbb bbbs bbdd bbrc bbwc bbwr bbws bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcds bcra bcrs bcsa bcsc bcss bd-r bdbc bddc bdsd brab brac brad brak bras braw brca brcb brcw brda brds brka brkb brrr brrs brsb brsr bsaa bsac bsas bsaw bsbd bscs bsdw bsra bsrd bssc bssd bwaa c-cd caaa caab caac caas caba cabs cac- caca cacc cack cacr cacw cada cadc cadd cadr cads cadw caka cara carb carc card cark carr cars casa casb casc casd cask casr cass cawk caws cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbdb cbdc cbds cbka cbkr cbrd cbsa cbsc cbwa cbwd ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs ccdc ccdr ccds cckw ccra ccrc ccrs ccsa ccsd ccss cd-r cdaa cdac cdad cdba cdcs cdda cddb cddr cdrs cdss ckac ckbc ckck ckcs ckcw ckrc ckrd ckrw cksa cksb cksw ckwd ckwr ckws ckww crab crac crar cras craw crbc crca crcc crcr crda crdc crkc crsa crss crwd csaa csab csac csak csar csas cscb cscc cscd cscr cscs csda csdb csdr cska csks csra csrc csrd csrs cssa cssd cssr cswk csws cwac cwrw daab daad daar daas daba dabb dabs daca dacs dada dads daka daks dara darb darc dard dark darr dars dasa dasb dasc dasd dask dass dawa dawd dawk dawr daws dbar dbas dbcc dbcs dbrs dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcra dcrk dcsc dcss dddd ddrc ddss dkba dkdc draa drab drac drad drak drar dras draw drba drbc drca drda drkw drra drrs drsa dsac dsba dsbc dscc dscr dscs dsda