#include<bits/stdc++.h>
using namespace std;

int main(){  
    string A, B; cin >> A >> B;
    bool flag = true;
    if(A == B && (A == "2" || A == "0")){
        cout << "E" << endl;
        flag = false;
    }
    if((A == "1" || B == "1" || A == "0" || B == "0") && flag){
        cout << "S" << endl;
        flag = false;
    }else if(flag){
        cout << "P" << endl;
    }
    return 0;
}