-ic b-u bbb bbc bbf bbi bbl bbn bbs bbu bcb bcc bcf bci bcl bcn bcs bcu bfb bfc bff bfi bfl bfn bfs bfu bi- bib bic bif bii bil bin bis biu blb blc blf bli bll bln bls blu bnb bnc bnf bni bnl bnn bns bnu bsb bsc bsf bsi bsl bsn bss bsu bub buc buf bui bul bun bus buu c-- cbb cbc cbf cbi cbl cbn cbs cbu ccb ccc ccf cci ccl ccn ccs ccu cfb cfc cff cfi cfl cfn cfs cfu ci- cib cic cif cii cil cin cis ciu cl- clb clc clf cli cll cln cls clu cn- cnb cnc cnf cni cnl cnn cns cnu csb csc csf csi csl csn css csu cub cuc cuf cui cul cun cus cuu fbb fbc fbf fbi fbl fbn fbs fbu fcb fcc fcf fci fcl fcn fcs fcu ffc fff ffi ffl ffn ffs ffu fib fic fif fii fil fin fis fiu flb flc flf fli fll fln fls flu fnb fnc fnf fni fnl fnn fns fnu fsb fsc fsf fsi fsl fsn fss fsu fub fuf fui ful fun fus fuu i-f ibb ibc ibf ibi ibl ibn ibs ibu icb icc icf ici icl icn ics icu ifb ifc iff ifi ifl ifn ifs ifu iib iic iif iii iil iin iis iiu il- ilb ilc ilf ili ill iln ils ilu in- inb inc inf ini inl inn ins inu is- isb isc isf isi isl isn iss isu iu- iub iuc iui ius lbb lbc lbf lbi lbl lbs lbu lcb lcc lcf lci lcl lcn lcs lcu lfb lfc lff lfi lfl lfn lfs lfu lib lic lif lii lil lin lis liu llb llc llf lli lll lln lls llu lnb lnc lni lnl lnn lns lnu lsb lsc lsf lsi lsl lsn lss lsu lub luc luf lui lul lun lus luu n-i nbb nbc nbf nbi nbl nbn nbs nbu ncb ncc ncf nci ncl ncn ncs ncu nfb nfc nff nfi nfl nfn nfs nfu nib nic nif nii nil nin nis niu nlb nlc nlf nli nll nln nls nlu nnb nnc nnf nni nnl nnn nns nnu nsb nsc nsf nsi nsl nsn nss nsu nub nuc nui nul nun nus nuu sbb sbc sbf sbi sbl sbn sbs sbu scb scc scf sci scl scn scs scu sfb sfc sff sfi sfl sfn sfs sfu sib sic sif sii sil sin sis siu slb slc slf sli sll sln sls slu snb snc snf sni snl snn sns snu ss- ssb ssc ssf ssi ssl ssn sss ssu sub suc suf sui sul sun sus suu ubb ubc ubf ubi ubl ubn ubs ubu ucb ucc ucf uci ucl ucn ucs ucu ufc uff ufi ufl ufn ufs ufu uib uic uif uii uil uin uis uiu ulb ulc ulf uli ull uln uls ulu un- unb unc unf uni unl unn uns unu usb usc usf usi usl usn uss usu uuc uun uus uuu

bbbb bbbs bbci bbfc bbfn bbin bblb bbls bcbc bcbs bccc bcci bccl bccs bcfc bcis bcnu bcsc bcsl bcsn bcss bcuc bfcs bffl bffs bfsi bibb bibi bibl bibs bicc bici bics biff bifi biin biis bili bill bils bilu bin- binc bini binn bins binu bis- bisc bisl biss bisu blcu blfc blic blin blis blls blni blss blub bluf blus bnib bnin bnss bsci bscs bsfc bsff bsfs bsic bsin bslc bsns bssc bubb bubi bubs bubu bucc buci bucs bucu bufc buff buic buif buin buis buiu bulb buli bull buls bulu bunb buni bunn buns bunu busc busi buss busu buus cbbc cbbs cbcc cbcl cbcn cbcs cbcu cbfb cbfc cblb cblc cbln cbsc cbsi cbsn cbus ccbc ccbn cccb cccc cccf ccci cccl cccs cccu ccfc ccff ccfi ccfl ccic ccii ccil ccis cclc ccli ccls ccnb ccnc ccnf ccni ccns ccnu ccsf ccsi ccsl ccsn ccss ccuc ccus cfbc cfbn cfbs cfcb cfcf cfcl cfcn cfcs cffb cfln cfls cfnb cfni cfns cfsi cfsl cfun cibc cibi cicc cici cics cicu ciff cifl cifs ciii ciis cili cill cils cin- cinc cinf cini cis- cisc cisl cisn ciss ciuc cius clib clic clif clii clin clis clsc club clun cnbc cnbl cnci cnib cnic cnsl cnss csbf cscb cscc cscf csci cscl cscs csfc csib csis cslu csuf csus cub- cubb cubi cubs cucc cuci cucn cufc cuff cufi cui- cuif cuil cuin cuis culb culc cull culs cusb cuss cusu fbis fbus fcbs fccf fcic fcii fcnl fcsc fcsl ffcc ffff ffii ffss ffun fibs ficc fics fifc fiff fifi fiii fiil fili fill filn fils fini finn fins fisc fisi fiss fisu flcl flic flii flin flis flnb flnc flub fluf flus fnci fnlc fnuf fscb fscc fsfi fsln fssc fssf fubb fubs fubu fuc- fuci fufc fuff fufu fuil fuli full fuls fulu funf funs fusc fusi fuss fusu ibcs ibfi ibis ibns ibsf ibsn ibss ibus icbc icbs iccb iccc iccf icci iccl iccn iccs iccu icfb icis icll icnb icnc icns icsb icsc icsi icss icub icus ifbb ific ifil ifis ifni ifns ifsb ifsc iiii iiis iisc iisi iisu iiuc ilbc ilic ilin ilis ill- illi ills ilni ilus incb inci incl incs infi infl infs inis inni inns innu insc inss insu inui inul inun inus isbl isbn iscc isci iscn iscs iscu isfc isic isil isin isis isls issc issf issi isss issu isus iucc iuiu iuss lbcc lbsc lcbc lccc lccs lcfc lcis lcls lcsc lfcc libc libs libu lics liff lifl liii liin liis lilb lili lill lils lilu linc linn lins lisi liss lisu liuf liun lius llbs llcc llcs lllc llll lnfs lsbu lscb lscs lsfc lubs luci lucs luff lufu luif luin luis luli lull lulu luni lunn luns lusi luss n-ii nbbc nbcc nbci nbcs nbfc nbfl nbic nbuf ncbc ncbi ncbs nccc nccf ncci nccn