bbbb bbbs bbci bbdd bcbc bcbs bccc bcci bccs bcds bcis bcsc bcss bdbc bddc bdii bdsd bibb bibi bibs bicc bici bics bidi bids biis bis- bisc bisd biss bisy biys bsbd bsci bscs bsic bssc bssd bysb bysi byss bysy byyd c-cd cbbc cbbs cbcc cbcs cbdb cbdc cbdi cbds cbid cbsc cbsi ccbc cccb cccc ccci cccs ccdc ccdi ccds ccic ccid ccii ccis ccsd ccsi ccss cdcs cddb cdic cdii cdis cdss cibc cibi cicc cici cics cidc cidi cids ciid ciii ciis cis- cisc cisd ciss cisy cscb cscc cscd csci cscs csdb csib csid csis cssd csys cybb cybc cybi cyc- cycb cycc cycs cyds cyy- cyyc dbcc dbcs dbss dc-y dcbc dccb dccc dcci dccs dcdb dcds dcii dcis dcsc dcss dddd ddss dibb dibs diby dici dicy didi dids didy diii diis dis- disc disd disi diss disy diyi dsbc dscc dscs dssc dssi dycd dydd dys- dysi dyss i-by ibcs ibid ibis ibss ibyi icbc icbd icbs iccb iccc icci iccs icdc icdd icis icsb icsc icsd icsi icss idic idid idis idsc idss iicd iiii iiis iisc iisd iisi isbd iscc iscd isci iscs isdb isdc isds isic isis issc issi isss issy isys s-ib s-ic s-ii sbbs sbcc sbcs sbds sbic sbsd sbsi scbi sccc sccs sccy scdc scds sci- scic scid scis scsc scsd scsi sdcc sddc sdds sdib sdic sdsc sdss sibc sibi sibs siby sicc sici sics sidd sidi sids sidy sisc sisd sisi siss sisy siyi ssby sscc ssci sscs ssdc ssdd ssid ssis sssb sssc sssi ssss sydi syds syis syss ybbs yccc ycsb yidi yids yiss ysby ysii ysyb yyyy