-ol fff ffl ffn ffo ffp ffr fft flf fll fln flo flp flr flt fnf fnl fnn fnp fnr fnt fof fol fon foo fop for fot fpl fpn fpo fpp fpr fpt frf frl frn fro frp frr frt ftf ftl ftn fto ftp ftr ftt l-p lff lfl lfn lfo lfp lfr lft llf lll lln llo llp llr llt lnl lnn lno lnp lnr lnt lof lol lon loo lop lor lot lpf lpl lpn lpo lpp lpr lpt lrf lrn lro lrp lrr lrt ltf ltl lto ltp ltr ltt nff nfl nfn nfo nfp nfr nft nlf nll nln nlo nlp nlr nlt nnf nnl nnn nno nnp nnt no- nof nol non noo nop nor not npf npl npn npo npp npr npt nrf nrl nrn nro nrp nrr nrt ntf ntn nto ntp ntr ntt of- off ofl ofn ofo ofp ofr oft olf oll oln olo olp olt on- onf onl onn ono onp onr ont oo- oof ool oon ooo oop oor oot op- opf opl opn opo opp opr opt or- orf orl orn oro orp orr ort ot- otf otl otn oto otp otr ott p-p pff pfl pfn pfo pfp pfr pft plf pll pln plo plp plr plt pn- pnf pnl pnn pno pnp pnr pnt pof pol pon poo pop por pot ppf ppl ppn ppo ppp ppr ppt prf prl prn pro prp prr prt pt- ptf ptl ptn pto ptp ptr ptt rff rfl rfn rfo rfp rfr rft rlf rll rln rlo rlp rlr rlt rnn rno rnp rnr rnt rof rol ron roo rop ror rot rpf rpl rpn rpo rpp rpr rpt rrf rrl rrn rrp rrr rrt rtf rtl rtn rto rtp rtr rtt tff tfl tfn tfo tfp tfr tft tlf tll tln tlo tlp tlr tlt tnf tnl tnn tno tnp tnr tnt to- tof tol ton too top tor tot tpf tpl tpn tpo tpp tpr tpt trf trl trn tro trp trr trt ttf ttl ttn tto ttp ttr ttt