#!/usr/bin/env python
# -*- coding: utf-8 -*-
import math

def f():
    a, b = map(int,input().split())
    if(a < b): return "K"
    elif(a == b): return "S"

    a *= a
    b *= b

    if(math.ceil(a / b) % 2 == 0): return "K"
    return "S"

print(f())