#include <iostream>
using namespace std;
int main(){
    string A,B;
    cin >> A >> B;
    if( (A=="0" && B=="0") || (A=="2"&&B=="2") ){
        cout << "E" << endl;
    }else if(A=="0" || B=="0" || A=="1" || B=="1"){
        cout << "S" << endl;
    }else cout << "P" << endl;
}