fff ffi ffm ffn ffo ffr ffs fft fif fii fim fin fir fis fit fmf fmi fmm fmn fmo fmr fms fmt fnf fni fnm fnn fnr fns fnt fof foi fom fon foo for fos fot frf fri frm frn fro frr frs frt fsf fsi fsm fsn fso fsr fss fst ftf fti ftm ftn fto ftr fts ftt i-f iff ifi ifm ifn ifo ifr ifs ift iif iii iim iin iio iir iis iit im- imf imi imm imn imo ims imt in- inf ini inm inn ino inr ins int io- iof ioi iom ion ioo ior ios iot ir- irf iri irm irn iro irr irs irt is- isf isi ism isn iso isr iss ist itf iti itm itn ito its itt m-f m-o m-r mff mfi mfm mfn mfo mfr mfs mft mi- mif mii mim min mio mir mis mit mmf mmi mmm mmn mmo mmr mms mmt mnf mni mnm mnn mno mnr mns mnt mof moi mom mon moo mor mos mot mrf mri mrm mrn mro mrr mrs mrt msf msi msm msn mso msr mss mst mtf mti mtm mtn mto mtr mts mtt n-i nff nfi nfn nfo nfr nfs nft nif nii nim nin nio nir nis nit nmi nmm nmn nmo nmr nms nmt nnf nni nnm nnn nno nns nnt no- nof noi nom non noo nor nos not nrf nri nrm nrn nro nrr nrs nrt nsf nsi nsm nsn nso nsr nss nst ntf nti ntm ntn nto ntr nts ntt o-i of- off ofi ofm ofn ofo ofr ofs oft oif oii oim oin oio oir ois oit om- omf omi omm omn omo omr oms omt on- onf oni onn ono onr ons ont oo- oof ooi oom oon ooo oor oos oot or- orf ori orm orn oro orr ors ort os- osf osi osm osn oso osr oss ost ot- otf oti otm otn oto otr ots ott rff rfi rfm rfn rfo rfr rfs rft rif rii rim rin rio rir ris rit rmf rmi rmm rmn rmo rmr rms rmt rni rnm rnn rno rnr rns rnt rof roi rom ron roo ror ros rot rrf rri rrm rrn rrr rrs rrt rsf rsi rsm rsn rso rsr rss rst rtf rti rtm rtn rto rtr rts rtt sff sfi sfm sfn sfo sfr sfs sft sif sii sim sin sio sir sis sit smf smi smm smn smo smr sms smt snf sni snm snn sno snr sns snt sof soi som son soo sor sos sot sr- srf sri srm srn sro srr srs srt ss- ssf ssi ssm ssn sso ssr sss sst stf sti stm stn sto str sts stt tff tfi tfm tfn tfo tfr tfs tft tif tii tim tin tio tir tis tit tmf tmi tmm tmn tmo tmr tms tmt tnf tni tnm tnn tno tnr tns tnt to- tof toi tom ton too tor tos tot trf tri trm trn tro trr trs trt tsf tsi tsm tsn tso tsr tss tst ttf tti ttm ttn tto ttr tts ttt