#include <iostream>
using namespace std;
int main(void){
    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;
    }
}