#include<iostream>
#include<string>
#include<algorithm>
#include<cmath>
#include<iomanip>
#include<cstring>
#include<map>
#include<vector>
#include<queue>
#include<climits>
using namespace std;
typedef long long int ll;

int main(){

	string a, b;
	cin >> a >> b;
	int x=a[0]-'0';
	int y=b[0]-'0';
	if(x==0 || y==0){
		cout << "S" << endl;
	} else if(x==0 || y==0){
		cout << "S" << endl;
	} else if(x==0 && y==0){
		cout << "E" << endl;
	} else if(x==2 && y==2){
		cout << "E" << endl;
	} else {
		cout << "P" << endl;
	}
  
  return 0;
}