bbbb bbci bbdd bbin bcbc bccc bcci bcit bctc bdbc bddc bdii bdin bibb bibi bicc bici bidi biin bin- binc bind bini binn bint biny bitc bitd bitt bnib bnin btcc btdt bttb byit bync bynd byyd c-cd cbbc cbcc cbcn cbct cbdb cbdc cbdi cbdn cbid cbit cbnd cbtc cbyt ccbc ccbn cccb cccc ccci ccdc ccdi ccdn ccic ccid ccii ccnb ccnc ccni ccny cctb cctc cctt cddb cdic cdii cdnb cdnc cibc cibi cicc cici cict cidc cidi cidt ciid ciii ciit cin- cinc cind cini cint citb citi citt city cnbc cnci cndd cnib cnic cnid cntc ctbi ctic cttn cybb cybc cybi cyc- cycb cycc cyn- cyt- cytb cyy- cyyc cyyn dbcc dbit dbtt dc-y dcbc dccb dccc dcci dcct dcdb dcii dctc dddd dibb diby dici dict dicy didi didy diii din- dinc dini dinn dint diti ditt diyi dnic dntt dtcc dtnb dybn dybt dycd dydd dyin dyit dync dynt dyny dyt- dytc dyty i-by ibid ibtb ibtc ibyi icbc icbd iccb iccc icci iccn icct icdc icdd icnb icnc idic idid idin iicd iiii iiit iitt inbd inby incb incd inci incy ind- indc indi indy inid init inni inny intd inti intn itby itic itin itty n-ii nbbc nbcc nbci nbic nbti nbty ncbc ncbi nccc ncci nccn ncct ncdc ncdn ncid ncit ncnc ncnd nctc ndcc nddb ndic ndnt ndtc nibi nicc nicd nici nicy nidd nidi niit nind nini nitb nitc niti nity niyi nndb nnit nnnn nntn ntbc ntcc ntnd nycc nycy nyit nynt nyny nytb nytc tbcb tbcc tbcd tbit tcby tccc tcdd tcnn tctc tddb tibi ticc tidc tidd tidy tiit tinc tind tini tinn tint tiny titc titi titt tiyi tiyn tnbc tncc tndd ttbb ttcn tttt ttyd tybi tydd tydi tydy tyin tynd tynt tyny tytd tyti tytt tyty tyyn yccc yctc ydin ydyt yidi yiti yyyy