iii iir iis iit iki ikk ikr iks ikt ir- iri irk irr irs irt is- isi isk isr iss ist iti itk its itt k-t kii kik kir kis kit kki kkk kkr kks kkt kri krk krr krs krt ksi ksk ksr kss kst ktk ktr kts ktt rii rik rir ris rit rkk rks rkt rri rrk rrr rrs rrt rsi rsk rsr rss rst rti rtk rtr rts rtt sii sik sir sis sit sk- ski skk skr sks skt sr- sri srk srr srs srt ss- ssi ssk ssr sss sst sti stk str sts stt tii tik tir tis tit tkk tkr tks tkt tri trk trr trs trt tsi tsk tsr tss tst tti ttk ttr tts ttt