#include<bits/stdc++.h>
using namespace std;

int main(){
    long long A,B; cin >> A >> B;
    /*
    if(A-B<2*B){
        cout << "S" << endl;
        return 0;
    }
    long long res=(2*A)/(2*B);
    if(res%2==0){
        cout << "K" << endl;
    }else{
        cout << "S" << endl;
    }
    */
    if(A<B){
        cout << "K" << endl;
    }else{
        cout << "S" << endl;
    }
}