#include<cstdio>
#include <iostream>
#include<algorithm>
#include<string>
#include<queue>
#include<vector>
#include<functional>
#include<cmath>
#include<map>
#include<stack>
#include<set>
#include<numeric>

#define mod 1000000007;

using namespace std;
typedef long long ll;
typedef pair<ll, ll> Pr;

string A, B;

 int main()
 {
	 cin >> A >> B;

	 if (A.size() == 1 || B.size() == 1) {
		 if ((A[0] == '2' && B[0] == '2') || (A[0] == '0' && B[0] == '0'))
			 cout << 'E' << endl;
		 else if ((A[0] == '0' || B[0] == '0' || A[0] == '1' || B[0] == '1'))
			 cout << 'S' << endl;
		 else
			 cout << 'P' << endl;
	 }else
		cout << 'P' << endl;
	return 0;
}