bbbb bbbs bbci bbeb bblb bbls bcbc bcbs bccc bcci bccl bccs bcec bces bcie bcis bcsc bcsl bcss bebb bebe bebi beci becs beeb beel bees beic beil beis bele beli bell bels bes- bese bess bibb bibe bibi bibl bibs bicc bice bici bics bieb biel bies biis bile bili bill bils bis- bisc bise bisl biss bleb blee blei bles blic blis blls blss bsci bscs bseb bsec bsee bses bsic bslc bssc bsse cbbc cbbs cbcc cbce cbcl cbcs cbec cbee cblb cblc cbsc cbse cbsi ccbc cccb cccc ccci cccl cccs ccee ccel ccic ccii ccil ccis cclc ccli ccls ccsi ccsl ccss cebs cec- cece ceci cecs ceeb ceec ceel cees ceil cel- celc cele celi cell cels cesc cese cesi cess cibc cibe cibi cicc cici cics ciee ciel cies ciii ciis cili cill cils cis- cisc cise cisl ciss clec clee clei cles clib clic clii clis clsc cscb cscc csce csci cscl cscs csec csee csib csis csse e-cl ebbc ebbs ebcc ebel ebes ebic ebis ebli ecbc ecbe eccb eccc ecce ecci eccl eces ecib ecil ecis ecsc ecse ecss eecs eeee eees eele eels eese eesi eics eiec eiei eies eile eise eiss el-b elbe elbi elcb elce elec elee eles elic elie elil elis elle elli ells else esbs escb esce esci escs esee esel eses esie esil esis esli esse essi essl i-be ibcs ibec ibes ibie ibis ible ibss icbc icbs iccb iccc icci iccl iccs icec icee icel ices icis icle icll icsb icsc icse icsi icss iecc ieie iele iels iesc iesi iies iiie iiii iiis iisc iisi ilbc ilce ile- ilec iles ilic ilie ilis ill- ille illi ills ilse isbe isbl iscc isci iscs iseb isec isee isel ises isic isie isil isis isle isls issc isse issi isss lbcc lbsc lcbc lccc lcce lccs lces lcis lcls lcsc lece leel lees leib leic leie leil leis lele leli lell lese less libc libe libs lice lics lieb liel lies liii liis lilb lile lili lill lils lise lisi liss llbs llcc llcs lles lllc llll lscb lscs lses s-ib s-ic s-ii sbbs sbcc sbcs sbic sbse sbsi scbi sccc scce sccl sccs scec scee scel sci- scic scie scil scis scl- sclc scls scsc scsi scsl se-c se-e se-i se-s sebe sebi sebs sec- secc sece secs seeb seec seel sees seie seii seil seis selb sele seli sell sels sesc sese sesi sess sibc sibe sibi sibs sicc sice sici sics siec siel sies sil- silc sile sili sill sils sisc sise sisi siss sl-i slcc sleb slee sles slib slic slie slsc sscc ssce ssci sscs ssec ssee sses ssis sslc ssle sssb sssc sssi ssss