#include <bits/stdc++.h>
#include "bits/stdc++.h"
#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <sstream>
#include <cmath>
#include <stack>
#include <queue>
#include <cctype>
#include <stdio.h>
#include <map>
#include <unordered_map>
#include <string.h>
#include <utility>

typedef long long ll;
const int INF = 1e8;

#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
using namespace std;

typedef pair<int, int> P;

int main() {

	string a,b;
	cin>>a>>b;

	if(a =="1" && b =="1"){
		cout<<"S"<<endl;
		return 0;
	}

	if(a =="3" && b =="3"){
		cout<<"P"<<endl;
		return 0;
	}

	if(a ==b){
		cout<<"E"<<endl;
		return 0;
	}

	if(a =="0" || b == "0" || a =="1"|| b =="1"){
		cout<<"S"<<endl;
		return 0;
	}

	cout<<"P"<<endl;

	return 0;

}