-th h-i hhh hhi hhr hhs hht hih hii hir his hit hr- hrh hri hrr hrs hrt hsh hsi hsr hss hst hth hti htr hts htt ihh ihi ihr ihs iht iih iii iir iis iit ir- iri irr irs irt is- ish isi isr iss ist ith iti its itt rh- rhh rhi rhr rhs rht rih rii rir ris rit rrh rri rrr rrs rrt rsh rsi rsr rss rst rti rtr rts rtt sh- shh shi shr shs sht sih sii sir sis sit sr- srh sri srr srs srt ss- ssh ssi ssr sss sst sth sti str sts stt th- thh thi thr ths tht tih tii tir tis tit trh tri trr trs trt tsh tsi tsr tss tst tth tti ttr tts ttt