import sequtils

proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': break
    result = 10 * result + k.ord - '0'.ord

let R = scan()
let r = scan()
if r > R: quit "K",0
if 3 * r > R : quit "S",0
echo "K"