a-do aaaa aaac aaad aaae aaaf aaap aaca aacc aacd aace aacf aaco aacp aada aadc aade aaea aaec aaep aafa aafc aafd aaff aaoe aaoo aapa aapc aapo acaa acac acad acae acap acca accc accd acce accf acco accp acda acdc acde acdf acdp ace- acea acec aced acfc acfd acfe acoa acod acoe acop acpa acpd acpe adaa adac adad adae adao adap adcc adda addc addd adde addo adea adee adeo adfa adfc adoc adod adoe adoo adp- aeac aeaf aeap aede afaa afad afao afap afca afcc afdc afee affa affc affo afoa afoe afoo afpa afpc afpe aoca aoce aopo apac apao apap apca apcc apcd apco apda apdd apea apec aped apep apfa apfc apfo apo- apoc apod apoe apof apoo apop appa appc appd c-cd caaa caac caaf caap cac- caca cacc cace caco cada cadc cadd cade cado caec cafa cafc cafe caff caod capa capc capd cape capo capp ccaa ccac ccad ccaf ccap ccca cccc cccf cccp ccdc ccdf ccdp cced ccee ccfa ccfc ccfd ccff ccoc ccod ccpa ccpe ccpp cd-e cdaa cdac cdad cdda cdec cdef cdfa cdfe ceac cead cec- ceca cece ceco cecp ceda cedd cede cedo ceec cef- cefa cefc ceop cepa cepc cepe cepo cepp cfaa cfac cfae cfao cfca cfcf cfco cfda cfdp cfoa cfpa cfpo coad coca coce coco cocp coda codd code coed coep cofc cofe coff cood coof coop copa copd cope copo copp cpaa cpac cpad cpaf cpap cpca cpce cpea cpep cpff cppa cppd daad daae daap daca dace dada dade dado dafa dafc dafe daff dafo dapa dape dapp dcca dccc dccp dcfc dcop dcpo dddd ddoc ddpo deac dead deae deaf deap dec- deca decc decd dece deco deda dedd dede dedo deed deef deep defe deff defo deop depa depc depe depo depp dfaf dfcc dfco dffa dfoe doae doap doca doce doco dod- doda dodd dode dodo doea doff dood doof doop dopa dope dopo dopp dpaa dpac dpcp dppa dppc eaaf eaca eacc eada eadd eadp eaec eaop eapc eapp ecaa ecac ecad ecao ecca eccc ecce ecco ecdc ecdf eced ecef ecfa ecfc eco- ecod ecop ecpa ecpd ecpp edac edad edca edda eddc edde eddo eddp ede- edea edfa edoc edod eeca eede eeea eeee eefa eefe eeoc efca efco efda efeo effa efpa eocd eode epaa epac epad epcc epec epee epfa epfc epoc epod eppa eppc eppo eppp faaa faac faad faap faca facc face facp fada fadd fade fado fafa fafc fafe faff fafo fapa fape fapp fcap fcca fccf fccp fcda fcpa fdca fdoa fdoc fead feaf feap fece feda fede feed fefc fefe feff fefo feod feof fepa fepc ffcc ffee ffff foad foaf foca foce foco foda fode foed fofo food foof fopp fp-c fpaa fpcc fpda o-eo oade oafc oafo ocac ocad ocap occa occc oce oced ocee ocef ocfa ocfp ocpa ocpd ocpp odac odda oddd odea oded odeo odoo odop oec- oeca oecc oedo oeec oepa off- offa offc offe offo ooaa ooda ooff oooo opap opca opec oped opep opo- oppa oppo paap paca pacd pace paco pada padd pade pado paea paec paep pafa pafc pafe paff paoc papa pape papp pcaa pcad pcae pcaf pcap pcca pccc pcce pcea pcep pcfc pcoa pcod pcoe pcpp pdac pdaf pdca pdcp pdea pdfa pdoc pdpa peac peap peca pece peco ped- peda pede pedf pedo peec peed peep pefc peff pepa pepd pepe pepo pfaa pfce pfff poad poca pocd poce poco pod- poda podd pode podo poea poed poff pood poof poop pop- popa popc pope popo popp ppac ppad ppap ppcc ppcd ppfa ppoa ppod pppa pppd pppo pppp