a-ak a-do a-ok a-wa aaaa aaab aaac aaad aaap aaba aabb aabc aabd aabp aabw aaca aacb aacc aacd aack aaco aacp aada aadc aaka aaoo aaow aapa aapc aapo aaww abaa abab abac abad abak abap abaw abb- abba abbb abbo abca abcb abcc abcd abcp abcw abda abdo aboa abob abod abok aboo abow abpa abpc abpd abpp abwa acaa acab acac acad acap acba acca accc accd acco accp acda acdb acdc acdp ackd ackw acoa acod acop acow acpa acpd acwa acww adaa adab adac adad adak adao adap adaw adba adbc adcc adda addc addd addo adob adoc adod adok adoo adp- adwa akaa akao akap akca akka akko akok akpo akwa aoba aoca aokp aopo aowd apac apak apao apap apaw apba apca apcb apcc apcd apco apda apdd apo- apoc apod apoo apop appa appc appd apwa awac awad awka awoo awow awpp awwa baaa baad baak baba babb babo bac- baca bacc back baco bada badb badd bado bak- baka bako bapa bapc bapp baw- bawd bawk bbad bbbb bbdd bbdo bbwc bcaa bcap bcbc bcbp bcca bccc bcda bcpp bdbc bddc bdpc boab boac boad boak boba bobb bobo bobw boca bock boco boda bodb bodo boka boko boob booc bood book boop boow bopa bopp bowa bowd bowk bpcp bpda bwaa bwoc c-bo c-cd caaa caab caac caap caba cabo cac- caca cacc cack caco cacw cada cadc cadd cado cadw caka caod capa capb capc capd capo capp cawk cbac cbbc cbca cbcc cbcp cbdb cbdc cbdo cbka cbko cbpc cbpp cbwa cbwd ccaa ccab ccac ccad ccap ccba ccbc ccca cccb cccc cccp ccdc ccdp cckw ccob ccoc ccod ccow ccpa ccpp cdaa cdac cdad cdba cdda cddb ckac ckbc ckck ckco ckcw ckdo ckoa ckob ckoc ckoo ckpc ckwd ckww coad coak coba cobb cobo coca cock coco cocp coda codd cok- coka coko coob cood cook coop copa copd copo copp cowd cowp cpaa cpac cpad cpap cpbc cpca cppa cppd cwac d-bo daab daad daap daba dabb dabo dabp daca dada dado daka dako dapa dapp dawa dawd dawk dawo dbcc dbcp dbpc dbpd dcbc dcca dccb dccc dccp dcdb dcop dcpo dddd ddoc ddpo dkba dkdc doab doak doap doba dobb doca dock doco dod- doda dodd dodo doka doko doob dood dook doop dopa dopo dopp dowa dowb dowd dowk dowp dpaa dpac dpbc dpcp dppa dppc dwac dwad dwcw dwdd dwkc dwok dwww kaaa kaab kaak kaap kaba kabb kabc kabd kabo kabw kacb kacc kacd kaco kacp kacw kad- kada kadd kado kaka kakc kakk kako kaoa kaoc kaok kaow kap- kapa kapc kapo kapp kapw kaw- kawa kawc kawk kawo kaww kbaa kbab kbac kbad kbak kbap kbba kbbb kbbc kbbd kbbk kbbo kbbw kbca kbcb kbck kbco kbcw kbdb kbdo kbkb kbkk kbko kbkw kboa kbob kboc kbod kbok kboo kbow kbpa kbpc kbpk kbpo kbwa kbwb kbwc kbwd kbww kcaa kcab kcac kcad kcap kcaw kcba kcbc kcbd kcbk kcbw kcca kccb kccc kccd kcck kcda kcdc kcdd kckc kckk kcko kcob kcow kcpa kcpc kcpo kcwa kcwb kcwc kcwd kcwk kdaa kdab kdac kdad kdak kdao kdap kdbb kdca kdcc kdcd kdco kddb kddc kddd kddk kdka kdkb kdkd kdkk kdko kdoc kdok kdow kdwa kdwd kkaa kkac kkap kkaw kkba kkbb kkbd kkbo kkcb kkcd kkck kkco kkcw kkda kkdc kkdd kkdo kkkk kkoa kkob kkoo kkow kkpc kkpk kkwb kkwd kkwk koab koac koak koap koba kobb kobc kobk kobo koca kocb kocd kock kocp kocw koda kodk kodo koka kokb kokc kokk koko kokp koob kooc kook kooo koop kopa kopb kopp kopw kowa kowb kowd kpac kpad kpak kpao kpaw kpba kpbb kpbd kpcc kpcw kpda kpdb kpdc kpdo kpkk kpoa kpob kpoc kpod kpok kpoo kpop kpow kppc kppd kppk kppo kppp kppw kpwb kpwd kpwk kpww kwab kwac kwad kwak kwaw kwbc kwbp kwbw kwca kwcd kwck kwdc kwdd kwdk kwdp kwdw kwka kwkb kwkc kwkk kwkw kwoa kwoc kwod kwok kwow kwpc kwpw kwwk obad obak obba obbo obkb obok ocab ocac ocad ocak ocap ocbc occa occc ocpa ocpd ocpp odac odbo odda oddd odoo odop okak okap okka okko okok okpo ooaa ooak ooba ooda oooo opap opca opo- oppa oppo owda owow owwa paak paap paba paca pacd pack paco pada padd pado paka pako paoc papa papb papp pawa pawb pawk pawo pbac pbcc pboc pbpa pbpk pcaa pcad pcap pcba pcbc pcca pccc pccw pcoa pcod pcpb pcpp pdac pdca pdcp pdoc pdpa poad poak poba pobo poca pocd pock poco pod- poda podd podo poka poko pood pook poop pop- popa popc popo popp powa powk powp ppac ppad ppap ppcc ppcd ppdk ppoa ppod pppa pppd pppo pppp pwaa pwac pwba waaa waac waad waao waaw waba wabb wabc wabd wabk wabo wabw waca wacb wacc wacd wack waco wacp wada wadb wadc wadd wadk wado waka wakb wakd wakk wako wakw waob waoc waok waoo waow wapa wapb wapd wapk wapo wapp wapw wawa wawb wawc wawd wawk wawo wbaa wbab wbac wbad wbak wbap wbbb wbbd wbbk wbbo wbbp wbbw wbca wbcb wbck wbco wbcp wbcw wbdc wbdk wbka wbkb wbkk wbko wbkp wbkw wbob wboc wbok wbop wbow wbpc wbpd wbpw wbwb wbwc wbwo wcab wcad wcao wcap wcba wcbc wcbd wcbw wcca wccb wccc wccd wcck wcco wccp wccw wcda wcdb wcdc wcdd wcdk wcdo wcdw wcka wckb wckk wckw wcoa wcob wcoc wcok wcoo wcop wcpa wcpb wcpc wcpk wcpo wcpp wcwa wcwb wcwc wcwp wdab wdac wdad wdak wdao wdba wdbc wdbd wdbk wdbo wdca wdcb wdcc wdcd wdck wdco wdcw wddc wddd wddk wddo wddw wdka wdkb wdkc wdkd wdkw wdoc wdod wdok wdow wdpc wdpw wdwd wkaa wkac wkad wkak wkao wkba wkbc wkbk wkbo wkbw wkca wkcb wkcd wkco wkcw wkda wkdb wkdd wkdk wkdo wkdp wkdw wkkb wkkc wkkd wkko wkkp wkkw wkoa wkoc wkok wkoo wkow wkpa wkpb wkpc wkpk wkpo wkpw