a-fu aaaa aaac aaaf aaap aaca aacc aacf aaco aacp aacu aafa aafc aaff aaoo aapa aapc aapo aaup acaa acac acap acca accc accf acco accp accu acfc acoa acop acou acpa acpu acu- acuf acuo acup afaa afao afap afca afcc afcu affa affc affo afoa afoo afpa afpc afua aoca aopo aouf apac apao apap apca apcc apco apfa apfc apfo apo- apoc apof apoo apop apou appa appc appu apua apuc apup auaa auca aucp aufc aupc caaa caac caaf caap cac- caca cacc caco cafa cafc caff cafu capa capc capo capp capu cauc cauf cauo caup ccaa ccac ccaf ccap ccca cccc cccf cccp cccu ccfa ccfc ccff ccoc ccpa ccpp ccuc ccup cfaa cfac cfao cfca cfcf cfco cfoa cfpa cfpo coca coco cocp cocu cofc coff coof coop copa copo copp coua coup cpaa cpac cpaf cpap cpca cpcu cpff cppa cuau cuca cucc cufa cufc cuff cufo cupo cupp faaa faac faap faca facc facp fafa fafc faff fafo fapa fapp fcap fcca fccf fccp fcpa fcup ffcc ffff foaf foca foco fofo foof fopp foua foup fp-c fpaa fpcc fuc- fuca fufc fuff fufu oaau oafc oafo ocac ocap occa occc ocfa ocfp ocpa ocpp off- offa offc offo offu ooaa ooff oooo opap opca opo- oppa oppo opua ouac oucc oufc ouff oupa ouu- paap paca paco pacu pafa pafc paff paoc papa papp paua paup pcaa pcaf pcap pcca pccc pcfc pcoa pcpp pfaa pfff poca poco poff poof poop pop- popa popc popo popp pouf poup ppac ppap ppcc ppfa ppoa pppa pppo pppp puao puca puff pupa pupu puuc uaca uafa uaoc uaua ucca uccp ucfa ucpa ucua ufcu uffa uocc uofa uofo upac upca uppa uppc uppp uppu upup uucp uuoc uuuu