iii iir iis iit iki ikk ikr iks ikt ir- iri irk irr irs irt iry is- isi isk isr iss ist isy iti itk its itt ity iyr iys iyt iyy k-t kii kik kir kis kit kki kkk kkr kks kkt kky kri krk krr krs krt kry ksi ksk ksr kss kst ktk ktr kts ktt kyr kys kyt rii rik rir ris rit riy rkk rks rkt rky rri rrk rrr rrs rrt rsi rsk rsr rss rst rti rtk rtr rts rtt rty ry- ryk ryr rys ryy sii sik sir sis sit sk- ski skk skr sks skt sky sr- sri srk srr srs srt sry ss- ssi ssk ssr sss sst sti stk str sts stt sty sy- syi syk syr sys syt tii tik tir tis tit tiy tkk tkr tks tkt tky tri trk trr trs trt try tsi tsk tsr tss tst tsy tti ttk ttr tts ttt tty tyr tys tyt yii yir yis yit yki ykk yrs yrt ysi ysk ysr yss yst ysy ytk ytr yts ytt yys yyt yyy