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