#include <iostream>
#include <string>
using namespace std;

int main() {
	string s1,s2;
	cin>>s1>>s2;
	if(s1==s2&&(s1=="0"||s1=="2"))cout<<"E"<<endl;
	else if(s1=="0"||s2=="0"||s1=="1"||s2=="1")cout<<"S"<<endl;
	else cout<<"P"<<endl;
	return 0;
}