bbbb bbbs bbci bbin bcbc bcbs bccc bcci bccs bcis bcnu bcsc bcsn bcss bcuc bibb bibi bibs bicc bici bics biin biis bin- binc bini binn bins binu bis- bisc biss bisu bnib bnin bnss bsci bscs bsic bsin bsns bssc bubb bubi bubs bubu bucc buci bucs bucu buic buin buis buiu bunb buni bunn buns bunu busc busi buss busu buus cbbc cbbs cbcc cbcn cbcs cbcu cbsc cbsi cbsn cbus ccbc ccbn cccb cccc ccci cccs cccu ccic ccii ccis ccnb ccnc ccni ccns ccnu ccsi ccsn ccss ccuc ccus cibc cibi cicc cici cics cicu ciii ciis cin- cinc cini cis- cisc cisn ciss ciuc cius cnbc cnci cnib cnic cnss cscb cscc csci cscs csib csis csus cub- cubb cubi cubs cucc cuci cucn cui- cuin cuis cusb cuss cusu ibcs ibis ibns ibsn ibss ibus icbc icbs iccb iccc icci iccn iccs iccu icis icnb icnc icns icsb icsc icsi icss icub icus iiii iiis iisc iisi iisu iiuc incb inci incs inis inni inns innu insc inss insu inui inun inus isbn iscc isci iscn iscs iscu isic isin isis issc issi isss issu isus iucc iuiu iuss n-ii nbbc nbcc nbci nbcs nbic ncbc ncbi ncbs nccc ncci nccn nccs nccu ncis ncnc ncsc ncsi ncss nibi nibs nicc nici nics nicu niiu nini nins nisi niss nisu nnnn nnss nscc nscs nsic nsin nsis nssb nssc nsss nsub nubc nubi nubs nuci nucs nucu nuin nunc nunn nuns nusi nuss nusu s-ib s-ic s-ii sbbs sbcc sbcs sbic sbsi sbus scbi sccc sccs sci- scic scin scis scsc scsi scsn scsu scub scun sibc sibi sibs sibu sicc sici sics sicu sini sinn sins sinu sisc sisi siss sisu siui sius sncc snib snns snub snus ssbn sscc ssci sscs ssin ssis ssns sssb sssc sssi ssss sub- subb subi subs suc- succ suci sucs suin suis sun- sunb suni sunn suns sunu sus- susi suss susu suus ubbi ubic ubii ubis ucbc ucci ucin ucsb ucsc ucsu uncc unci uncs uni- unic unii unin unis unni unns uns- unsc unus usbc usbs uscc uscs usin usis usnc usnu ussb ussc usss ussu usui usun usus uuni uusi uuuu