#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream> 
#include<map>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <iomanip>
using namespace std;
#define MAX_MOD 1000000007
#define REP(i,n) for(int i = 0;i < n;++i)
#define M_PI 3.14159265359
int main() {
	double a, b;
	cin >> a >> b;
	long long counter = 0;
	if (a < b) {
		cout << "K" << endl;
		return 0;
	}
	a -= b / 2;
	long long kai_zyo = a / b;
	counter += kai_zyo*kai_zyo * 2;
	long long ho_counter = (long long)((a + (b / 2)) / b);
	counter += ho_counter * 2;
	counter %= 5;
	if (counter == 0) {
		cout << "K" << endl;
	}
	else {
		cout << "S" << endl;
	}
}