#include <iostream>
#include <math.h>
using namespace std;

int main(){
  unsigned a,b;
  long double two=sqrt(2);
  long double c;
  unsigned n;

  cin >> a>>b;

  c=a/(two*b);
  n=float(c);

  if(n*n%2){
    cout << "S" <<endl;
  }
  else{
    cout << "K" <<endl;
  }

  return 0;
}