a-a a-i a-t aaa aaf aai aan aar aat af- afa aff afi afn afr aft ai- aia aif aii ain air ait an- ana anf ani ann anr ant ar- ara arf ari arn arr art at- ata atf ati atn atr att faa faf fai fan far fat ffa fff ffi ffn ffr fft fia fif fii fin fir fit fna fnf fni fnn fnr fnt fra frf fri frn frr frt fta ftf fti ftn ftr ftt i-f ia- iaa iaf iai ian iar iat ifa iff ifi ifn ifr ift iia iif iii iin iir iit in- ina inf ini inn inr int ir- ira irf iri irn irr irt ita itf iti itn itt n-i naa naf nai nan nar nat nfa nff nfi nfn nfr nft nia nif nii nin nir nit nna nnf nni nnn nnt nra nrf nri nrn nrr nrt nta ntf nti ntn ntr ntt ra- raa raf rai ran rar rat rfa rff rfi rfn rfr rft ria rif rii rin rir rit rna rni rnn rnr rnt rra rrf rri rrn rrr rrt rta rtf rti rtn rtr rtt taa taf tai tan tar tat tfa tff tfi tfn tfr tft tia tif tii tin tir tit tna tnf tni tnn tnr tnt tra trf tri trn trr trt tta ttf tti ttn ttr ttt