-ic b-u bbb bbc bbf bbg bbi bbk bbl bbn bbs bbt bbu bcb bcc bcf bcg bci bck bcl bcn bcs bct bcu bfb bfc bff bfg bfi bfl bfn bfs bft bfu bgb bgc bgf bgg bgi bgk bgl bgn bgs bgt bgu bi- bib bic bif big bii bik bil bin bis bit biu bkb bkc bkf bkg bkk bkl bkn bks bkt blb blc blf blg bli blk bll bln bls blt blu bnb bnc bnf bng bni bnk bnl bnn bns bnt bnu bsb bsc bsf bsg bsi bsk bsl bsn bss bst bsu btb btc btf btg bti btk btl btn bts btt btu bub buc buf bug bui buk bul bun bus but buu c-- cbb cbc cbf cbg cbi cbk cbl cbn cbs cbt cbu ccb ccc ccf ccg cci cck ccl ccn ccs cct ccu cfb cfc cff cfg cfi cfk cfl cfn cfs cft cfu cgb cgc cgg cgi cgl cgn cgs cgt cgu ci- cib cic cif cig cii cik cil cin cis cit ciu ckb ckc cki cks ckt cl- clb clc clf clg cli clk cll cln cls clt clu cn- cnb cnc cnf cng cni cnl cnn cns cnt cnu csb csc csf csg csi csk csl csn css cst csu ctb ctc ctf ctg cti ctk ctl ctn cts ctt ctu cub cuc cuf cug cui cuk cul cun cus cut cuu fbb fbc fbf fbg fbi fbk fbl fbn fbs fbt fbu fcb fcc fcf fcg fci fck fcl fcn fcs fct fcu ffc fff ffg ffi ffk ffl ffn ffs fft ffu fgb fgc fgf fgg fgi fgl fgn fgs fgt fib fic fif fig fii fik fil fin fis fit fiu fkb fkc fkf fkg fki fkk fkl fkt flb flc flf flg fli fll fln fls flt flu fnb fnc fnf fng fni fnk fnl fnn fns fnt fnu fsb fsc fsf fsg fsi fsk fsl fsn fss fst fsu ftb ftc ftf ftg fti ftk ftl ftn fts ftt ftu fub fuf fug fui fuk ful fun fus fut fuu gbc gbf gbg gbi gbk gbl gbn gbs gbt gbu gcb gcc gcf gcg gci gck gcl gcn gcs gct gcu gfb gfc gff gfi gfk gfl gfs gft ggb ggc ggg ggi ggn ggs ggt ggu gib gic gif gig gii gik gil gin gis git giu gkb gkn gks gkt glb glc glf glg gli glk gll gln gls glt glu gnb gnc gnf gni gnl gnn gns gnt gnu gsb gsc gsf gsg gsi gsk gsl gsn gss gst gsu gtb gtc gtf gtg gti gtk gtl gtn gts gtt gtu gu- gub guc guf gug gui guk gul gun gus gut guu i-f ibb ibc ibf ibg ibi ibk ibl ibn ibs ibt ibu icb icc icf icg ici ick icl icn ics ict icu ifb ifc iff ifg ifi ifl ifn ifs ift ifu igb igc igf igg igi igk igl ign igs igt igu iib iic iif iii iil iin iis iit iiu ikb ikc ikf iki ikk ikl iks ikt iku il- ilb ilc ilf ilg ili ilk ill iln ils ilt ilu in- inb inc inf ing ini ink inl inn ins int inu is- isb isc isf isg isi isk isl isn iss ist isu itb itc itf itg iti itk itl itn its itt itu iu- iub iuc iug iui ius iut k-t kbb kbc kbf kbi kbk kbl kbn kbs kbu kcb kcc kcg kci kck kcl kcn kcs kct kcu kfc kff kfg kfi kfs kfu kgb kgc kgf kgi kgl kgs kgu kib kic kif kig kii kik kil kin kis kit kiu kkb kkc kki kkk kkl kkn kks kkt kku kl- klb klc klf klg kli kls klt klu kn- knc knf kng kni knk knl knn knt knu ksb ksc ksf ksg ksi ksk ksl ksn kss kst ksu ktb ktc ktf ktg ktk ktl ktn kts ktt ktu kub kuc kug kui kuk kul kun kus kut kuu lbb lbc lbf lbg lbi lbk lbl lbs lbt lbu lcb lcc lcf lcg lci lck lcl lcn lcs lct lcu lfb lfc lff lfg lfi lfk lfl lfn lfs lft lfu lgb lgc lgf lgg lgi lgk lgl lgn lgs lgt lgu lib lic lif lig lii lik lil lin lis lit liu lkb lkg lkl lks lkt llb llc llf llg lli llk lll lln lls llt llu lnb lnc lng lni lnk lnl lnn lns lnt lnu lsb lsc lsf lsg lsi lsk lsl lsn lss lst lsu ltb ltc ltf ltg lti ltk ltl lts ltt ltu lub luc luf lug lui luk lul lun lus lut luu n-i nbb nbc nbf nbg nbi nbk nbl nbn nbs nbt nbu ncb ncc ncf ncg nci nck ncl ncn ncs nct ncu nfb nfc nff nfi nfk nfl nfn nfs nft nfu ngb ngc ngf ngg ngi ngk ngl ngn ngs ngt ngu nib nic nif nig nii nik nil nin nis nit niu nkc nkf nki nkk nkn nks nkt nku nlb nlc nlf nlg nli nlk nll nln nls nlt nlu nnb nnc nnf nng nni nnk nnl nnn nns nnt nnu nsb nsc nsf nsg nsi nsk nsl nsn nss nst nsu ntb ntc ntf ntg nti ntk ntn nts ntt ntu nub nuc nug nui nuk nul nun nus nut nuu sbb sbc sbf sbg sbi sbk sbl sbn sbs sbt sbu scb scc scf scg sci sck scl scn scs sct scu sfb sfc sff sfg sfi sfk sfl sfn sfs sft sfu sgb sgc sgf sgg sgi sgk sgl sgn sgs sgt sgu sib sic sif sig sii sik sil sin sis sit siu sk- skb skc skf skg ski skk skl sks skt sku slb slc slf slg sli slk sll sln sls slt slu snb snc snf sng sni snk snl snn sns snt snu ss- ssb ssc ssf ssg ssi ssk ssl ssn