-ol fff ffi ffl ffn ffo ffp ffr ffs fif fii fil fin fip fir fis flf fli fll fln flo flp flr fls fnf fni fnl fnn fnp fnr fns fof foi fol fon foo fop for fos fpi fpl fpn fpo fpp fpr fps frf fri frl frn fro frp frr frs fsf fsi fsl fsn fso fsp fsr fss i-f iff ifi ifl ifn ifo ifp ifr ifs iif iii iil iin iio iip iir iis il- ilf ili ill iln ilo ilp ilr ils in- inf ini inl inn ino inp inr ins io- iof ioi iol ion ioo iop ior ios ipf ipi ipl ipn ipo ipp ipr ips ir- irf iri irl irn iro irp irr irs is- isf isi isl isn iso isp isr iss l-p lff lfi lfl lfn lfo lfp lfr lfs lif lii lil lin lio lip lir lis llf lli lll lln llo llp llr lls lni lnl lnn lno lnp lnr lns lof loi lol lon loo lop lor los lpf lpi lpl lpn lpo lpp lpr lps lrf lri lrn lro lrp lrr lrs lsf lsi lsl lsn lso lsp lsr lss n-i nff nfi nfl nfn nfo nfp nfr nfs nif nii nil nin nio nip nir nis nlf nli nll nln nlo nlp nlr nls nnf nni nnl nnn nno nnp nns no- nof noi nol non noo nop nor nos npf npi npl npn npo npp npr nps nrf nri nrl nrn nro nrp nrr nrs nsf nsi nsl nsn nso nsp nsr nss o-i of- off ofi ofl ofn ofo ofp ofr ofs oif oii oil oin oio oip oir ois olf oli oll oln olo olp ols on- onf oni onl onn ono onp onr ons oo- oof ooi ool oon ooo oop oor oos op- opf opi opl opn opo opp opr ops or- orf ori orl orn oro orp orr ors os- osf osi osl osn oso osp osr oss p-p pff pfi pfl pfn pfo pfp pfr pfs pif pii pil pin pio pip pir pis plf pli pll pln plo plp plr pls pn- pnf pni pnl pnn pno pnp pnr pns pof poi pol pon poo pop por pos ppf ppi ppl ppn ppo ppp ppr pps prf pri prl prn pro prp prr prs ps- psf psi psl psn pso psp psr pss rff rfi rfl rfn rfo rfp rfr rfs rif rii ril rin rio rip rir ris rlf rli rll rln rlo rlp rlr rls rni rnn rno rnp rnr rns rof roi rol ron roo rop ror ros rpf rpi rpl rpn rpo rpp rpr rps rrf rri rrl rrn rrp rrr rrs rsf rsi rsl rsn rso rsp rsr rss sff sfi sfl sfn sfo sfp sfr sfs sif sii sil sin sio sip sir sis slf sli sll sln slo slp slr sls snf sni snl snn sno snp snr sns sof soi sol son soo sop sor sos spf spi spl spn spo spp spr sps sr- srf sri srl srn sro srp srr srs ss- ssf ssi ssl ssn sso ssp ssr sss