#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <cstdio>
#include <functional>
#include <set>
#include <sstream>
#include <map>
#include <queue>
#include <stack>

using namespace std;

const long long mod=1000000007; 

double PI =3.141592653589793;

bool calc(long long B,int n){
	
	int R=B/sin( PI/n );
	return R<B;
}

int main()
{

	long long A,B;
	cin>>A>>B;
	
	if(A<B){
		cout<<"K"<<endl;
	}else if( A < 2*B ){
		cout<<"S"<<endl;
	}else{
		int n=3;
		while(calc(B,n+1)) n++;
		cout<<"KS"[n%2]<<endl;
	}
	
	return 0;
}