iiii iiis iirs iisi iisr ikki ikri iri- iris irki irks irri irrs irvs isis isri issi issr isss ivrs kiii kiik kiis kiki kikk kikr kiri kirk kirr kirs kirv kisi kisk kisr kiss kisv kivi kkik kkkk kkrk kkrr kkrs kkrv kksi kksr kkss kkvr kkvv krik kris kriv krki krkk krkr krks krkv krri krrk krrr krrs krsk krsr krss krsv krvi krvk krvr krvs krvv ksii ksik ksir ksis ksiv kskk kskr ksks ksrr ksrs ksrv kssi kssr ksss ksvi ksvr kvik kvir kvis kviv kvri kvrr kvrv kvsi kvsr kvss kvsv kvvr kvvs kvvv riis riki rikk riri rirs risi risk riss rivs rkss rksv rrrr rsis rvik s-ii s-iv siik siki sikr siks siri sirk sirr sirs sisi sisk siss sivi skik skir skis skiv skss sris ssis ssri ssrs sssi ssss svir viii viik viki viri virk virr visi visk viss vivi vris vrsi vvvv