bbbb bbci bbeb bbet bcbc bccc bcci bcec bcet bcie bcit bctc bebb bebe bebi beby beci beeb beej beet beey beic beij beit betc bete beti bett betv bevy beye beyi beyt bibb bibe bibi bicc bice bici bieb biet biji bitc bite bitt bive bivi bivy bjcc bjec btcc btec btie bttb btvi byce byit byte cbbc cbcc cbce cbct cbec cbee cbet cbit cbtc cbtv cbvb cbve cbyt ccbc cccb cccc ccci cccv ccee ccic ccii cciv cctb cctc cctt cctv ccvi cec- cece ceci cect ceeb ceec cejc cet- cete ceti cetv cevy cibc cibe cibi cicc cici cict ciee ciii ciit citb cite citi citt citv city civc cive civy cjbc cjcb cjcj cjcy cjic cjvb cjye ctbi ctec ctic ctvt cvcc cvet cvii cvte cybb cybc cybi cyc- cycb cycc cyt- cytb cyte cyve cyy- cyyc ebbc ebby ebcc ebic ebit ecbc ecbe eccb eccc ecce ecci ecct ecib ecit ect- ectc ectv eeby eeee eetc eete eiec eiei eiji eitb eitc eiti ejby ejit ejji etbc etcc etec etee etic ette etti etty evet evey evie evje eyeb eyec eyet eyey eyte i-be i-by ibec ibet ibie ibtb ibtc ibyi icbc iccb iccc icci icct icec icee icet icey ictv iecc ieet ieie iett ietv iiie iiii iiit iitt ijet ijji itbe itby itec itet itic itie itty ivbv ivec ivey ivic ivie iyet jbtv jcbc jccc jcci jcvi jebb jebe jeci jeet jeit jetb jete jeti jett jibb jibe jibi jiet jije jiji jiti jive jiye jjcc jtbc jtcc jybe jyce tbcb tbcc tbce tbit tbvi tcby tccc tctc tect teec teej teet teev teic teie tete teti tett teye tibi ticc tice tie- tiee tiei tiet tiit tiji titc tite titi titt tivi tivy tiye tiyi ttbb tttt tvtv tybi tyce tyee tyet tyte tyti tytt tyty vbcc vbyv vcbi vcci vecc veci veet veie veii veit vete veti veve vevi vevy veye vibe viby vic- vice vici vict viej viet viey viii viji vite viti vitt vive vivi vivy viye vt-i vtec vvvv vyce vyit vyte ybet yccc ycee ycie yctc yeet yeie yeii yeit yeji yete yeti yett yeve yeye yeyi yiet yiji yite yiti yive yvie yyyy