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