-er -ji bbb bbe bbf bbg bbi bbk bbl bbr bbs bbt be- beb bee bef beg bei bek bel ber bes bet bfb bfe bff bfg bfi bfj bfl bfr bfs bft bgb bge bgf bgg bgi bgk bgl bgr bgs bgt bi- bib bie bif big bii bij bik bil bir bis bit bjf bjg bji bjj bjk bjr bjs bjt bkb bke bkf bkg bkk bkl bkr bks bkt blb ble blf blg bli blj blk bll blr bls blt brb bre brf brg bri brj brk brl brr brs brt bsb bse bsf bsg bsi bsj bsk bsl bsr bss bst btb bte btf btg bti btk btl btr bts btt ebb ebe ebf ebg ebi ebj ebk ebl ebr ebs ebt eeb eee eef eeg eek eel eer ees eet ef- efb efe eff efg efi efl efr efs eft egb ege egf egg egi egl egr egs egt eib eie eif eig eii eij eik eil eir eis eit ejf eji ejl ejt ekb eke ekf ekg eki ekl ekr eks ekt elb ele elf elg eli elk ell elr els elt erb ere erf erg eri erk erl err ers ert es- esb ese esf esg esi esk esl esr ess est etb ete etf etg eti etj etk etl etr ets ett fbb fbe fbf fbg fbi fbk fbl fbr fbs fbt feb fee fef feg fei fek fel fer fes fet ffe fff ffg ffi ffk ffl ffr ffs fft fgb fge fgf fgg fgi fgl fgr fgs fgt fib fie fif fig fii fij fik fil fir fis fit fjb fjg fji fjs fkb fkf fkg fki fkj fkk fkl fkt flb fle flf flg fli fll flr fls flt frb fre frf frg fri frj frk frl frr frs frt fsb fse fsf fsg fsi fsj fsk fsl fsr fss fst ftb fte ftf ftg fti ftk ftl ftr fts ftt gbe gbf gbg gbi gbj gbk gbl gbr gbs gbt ge- geb gee gef geg gei gek gel ger ges get gfb gfe gff gfi gfk gfl gfr gfs gft ggb ggg ggi ggj ggr ggs ggt gib gie gif gig gii gij gik gil gir gis git gje gjg gjr gjt gkb gks gkt glb gle glf glg gli glj glk gll glr gls glt grb gre grf grg gri grj grk grl grr grs grt gsb gse gsf gsg gsi gsj gsk gsl gsr gss gst gtb gte gtf gtg gti gtk gtl gtr gts gtt i-f ibb ibe ibf ibg ibi ibj ibk ibl ibr ibs ibt ie- iee ief ieg iei iej iek iel ier ies iet ifb ife iff ifg ifi ifl ifr ifs ift igb ige igf igg igi igk igl igr igs igt iib iie iif iii iij iil iir iis iit ijb ije ijf ijg iji ijk ijl ijs ijt ikb ike ikf iki ikk ikl ikr iks ikt il- ilb ile ilf ilg ili ilk ill ilr ils ilt ir- irb ire irf irg iri irj irk irl irr irs irt is- isb ise isf isg isi isj isk isl isr iss ist itb ite itf itg iti itj itk itl its itt j-i jbf jbg jbi jbj jbk jbl jbr jbs jbt jeb jee jef jeg jei jej jek jel jer jes jet jfb jfe jff jfg jfi jfj jfk jfl jfr jfs jft jgb jge jgi jgr jgs jgt jib jie jif jig jii jij jil jir jis jit jjb jjf jjg jjj jjk jjl jjr jjs jkb jkk jkl jkr jks jkt jlb jle jlf jlg jli jll jlr jls jlt jrb jrf jrg jri jrk jrl jrr jrs jrt jsb jse jsf jsg jsi jsj jsk jsl jsr jss jst jtb jte jtf jtg jti jtk jtl jtr jts jtt k-t kbb kbe kbf kbi kbk kbl kbr kbs ke- keb kee kef keg kei kek kel ker kes ket kff kfg kfi kfs kgb kgf kgi kgl kgs kib kie kif kig kii kij kik kil kir kis kit kjb kje kji kjr kjs kkb kke kki kkk kkl kkr kks kkt kl- klb klf klg kli klr kls klt krf krg kri krk krl krr krs krt ksb kse ksf ksg ksi ksk ksl ksr kss kst ktb kte ktf ktg ktj ktk ktl ktr kts ktt lbb lbe lbf lbg lbi lbj lbk lbl lbr lbs lbt leb lee lef leg lei lej lek lel ler les let lfb lfe lff lfg lfi lfk lfl lfr lfs lft lgb lge lgf lgg lgi lgj lgk lgl lgr lgs lgt lib lie lif lig lii lij lik lil lir lis lit lje ljf ljj ljs lkb lkg lkl lkr lks lkt llb lle llf llg lli llj llk lll llr lls llt lrb lrf lrg lri lrk lrr lrs lrt lsb lse lsf lsg lsi lsj lsk lsl lsr lss lst ltb lte ltf ltg lti ltk ltl ltr lts ltt rbb rbe rbf rbg rbi rbk rbl rbr rbs rbt re- reb ree ref reg rei rek rel rer res ret rfb rfe rff rfg rfi rfj rfk rfl rfr rfs rft rgb rge rgf rgg rgi rgk rgr rgs rgt rib rie rif rig rii rik ril rir ris rit rjf rjg rjk rjr rkb rke rkf rkg rkk rks rkt rle rlf rlg rli rll rlr rls rlt rrb rrf rrg rri rrk rrl rrr rrs rrt rsb rse rsf rsg rsi rsj rsk rsl rsr rss rst rtb rte rtf rtg rti rtj rtk rtl rtr rts rtt sbb sbe sbf sbg sbi sbj sbk sbl sbr sbs sbt se- seb see sef seg sei sej sek sel ser ses set sfb sfe sff sfg sfi sfj sfk sfl sfr sfs sft sgb sge sgf sgg sgi sgk sgl sgr sgs sgt sib sie sif sig sii sij sik sil sir sis sit sjb sje sjf sji sjj sjk sjr sjs sjt sk- skb ske skf skg ski skj