-ol fff ffi ffk ffl ffn ffo ffr ffs fif fii fik fil fin fir fis fkf fki fkk fkl flf fli fll fln flo flr fls fnf fni fnk fnl fnn fnr fns fof foi fok fol fon foo for fos frf fri frk frl frn fro frr frs fsf fsi fsk fsl fsn fso fsr fss i-f iff ifi ifl ifn ifo ifr ifs iif iii iil iin iio iir iis ikf iki ikk ikl iko ikr iks il- ilf ili ilk ill iln ilo ilr ils in- inf ini ink inl inn ino inr ins io- iof ioi iol ion ioo ior ios ir- irf iri irk irl irn iro irr irs is- isf isi isk isl isn iso isr iss kff kfi kfo kfs kif kii kik kil kin kio kir kis kki kkk kkl kkn kkr kks kl- klf kli klo klr kls kn- knf kni knk knl knn kno knr kof koi kok kol kon koo kor kos krf kri krk krl krn kro krr krs ksf ksi ksk ksl ksn kso ksr kss lff lfi lfk lfl lfn lfo lfr lfs lif lii lik lil lin lio lir lis lkl lkr lks llf lli llk lll lln llo llr lls lni lnk lnl lnn lno lnr lns lof loi lok lol lon loo lor los lrf lri lrk lrn lro lrr lrs lsf lsi lsk lsl lsn lso lsr lss n-i nff nfi nfk nfl nfn nfo nfr nfs nif nii nik nil nin nio nir nis nkf nki nkk nkn nko nkr nks nlf nli nlk nll nln nlo nlr nls nnf nni nnk nnl nnn nno nns no- nof noi nok nol non noo nor nos nrf nri nrk nrl nrn nro nrr nrs nsf nsi nsk nsl nsn nso nsr nss o-i of- off ofi ofl ofn ofo ofr ofs oif oii oik oil oin oio oir ois oki okk okl oko okr oks olf oli olk oll oln olo ols on- onf oni onk onl onn ono onr ons oo- oof ooi ook ool oon ooo oor oos or- orf ori ork orl orn oro orr ors os- osf osi osk osl osn oso osr oss rff rfi rfk rfl rfn rfo rfr rfs rif rii rik ril rin rio rir ris rkf rkk rko rks rlf rli rll rln rlo rlr rls rni rnn rno rnr rns rof roi rok rol ron roo ror ros rrf rri rrk rrl rrn rrr rrs rsf rsi rsk rsl rsn rso rsr rss sff sfi sfk sfl sfn sfo sfr sfs sif sii sik sil sin sio sir sis sk- skf ski skk skl sko skr sks slf sli slk sll sln slo slr sls snf sni snk snl snn sno snr sns sof soi sok sol son soo sor sos sr- srf sri srk srl srn sro srr srs ss- ssf ssi ssk ssl ssn sso ssr sss