#include <iostream>
using namespace std;
int main(){
  int a,b; cin>>a>>b;
  int c=0;
  if(a>=b){
    a-=b;
    c++;
  }
  while(a>=2*b){
    a-=2*b;
    c++;
  }
  if(c%2==1){
    cout<<"S"<<endl;
  } else {
    cout<<"K"<<endl;
  }
  return 0;
}