a-a a-i aaa aaf aai aan aar aas aau af- afa aff afi afn afr afs afu ai- aia aif aii ain air ais aiu an- ana anf ani ann anr ans anu ar- ara arf ari arn arr ars aru as- asa asf asi asn asr ass asu au- aua auf aui aun aur aus faa faf fai fan far fas fau ffa fff ffi ffn ffr ffs ffu fia fif fii fin fir fis fiu fna fnf fni fnn fnr fns fnu fra frf fri frn frr frs fru fsa fsf fsi fsn fsr fss fsu fua fuf fui fun fur fus fuu i-f ia- iaa iaf iai ian iar ias iau ifa iff ifi ifn ifr ifs ifu iia iif iii iin iir iis iiu in- ina inf ini inn inr ins inu ir- ira irf iri irn irr irs iru is- isa isf isi isn isr iss isu iu- iua iui iur ius n-i naa naf nai nan nar nas nau nfa nff nfi nfn nfr nfs nfu nia nif nii nin nir nis niu nna nnf nni nnn nns nnu nra nrf nri nrn nrr nrs nru nsa nsf nsi nsn nsr nss nsu nua nui nun nur nus nuu ra- raa raf rai ran rar ras rau rfa rff rfi rfn rfr rfs rfu ria rif rii rin rir ris rna rni rnn rnr rns rnu rra rrf rri rrn rrr rrs rru rsa rsf rsi rsn rsr rss rsu rua ruf rui run rur rus ruu saa saf sai san sar sas sau sfa sff sfi sfn sfr sfs sfu sia sif sii sin sir sis siu sna snf sni snn snr sns snu sr- sra srf sri srn srr srs ss- ssa ssf ssi ssn ssr sss ssu sua suf sui sun sur sus suu ua- uaa uaf uai uan uar uas uau ufa uff ufi ufn ufr ufs ufu uia uif uii uin uir uis uiu un- una unf uni unn unr uns unu ur- ura urf uri urn urr urs uru usa usf usi usn usr uss usu uua uun uur uus uuu