#include <iostream>
#include <string>
using namespace std;
int main(int argc, char* argv[])
{
	string A,B;
	cin>>A>>B;
	if (A[0]=='0' && B[0]=='0'){
		cout<<"E"<<endl;
		return 0;
	}
	if (A[0]=='0' || B[0]=='0'){
		cout<<"S"<<endl;
		return 0;
	}
	if (!A.compare("1") && !B.compare("1")){
		cout<<"S"<<endl;
		return 0;
	}
	if (!A.compare("1") || !B.compare("1")){
		cout<<"S"<<endl;
		return 0;
	}
	if (!A.compare("2") && !B.compare("2")){
		cout<<"E"<<endl;
		return 0;
	}
	cout<<"P"<<endl;
	return 0;
}