iii iin iir iis iit in- ini inn inr ins int ir- iri irn irr irs irt is- isi isn isr iss ist iti itn its itt n-i nii nin nir nis nit nni nnn nns nnt nri nrn nrr nrs nrt nsi nsn nsr nss nst nti ntn ntr nts ntt rii rin rir ris rit rni rnn rnr rns rnt rri rrn rrr rrs rrt rsi rsn rsr rss rst rti rtn rtr rts rtt sii sin sir sis sit sni snn snr sns snt sr- sri srn srr srs srt ss- ssi ssn ssr sss sst sti stn str sts stt tii tin tir tis tit tni tnn tnr tns tnt tri trn trr trs trt tsi tsn tsr tss tst tti ttn ttr tts ttt