#include<bits/stdc++.h>
using namespace std;

int main(){
	cin.tie(0),ios::sync_with_stdio(false);
	string a,b; cin>>a>>b;
	bool p=true,e=false;
	if(a.size()==1&&(a.front()=='0'||a.front()=='1'))p=false;
	if(b.size()==1&&(b.front()=='0'||b.front()=='1'))p=false;
	if((a.size()==1&&a.front()=='2')&&(b.size()==1&&b.front()=='2'))e=true;
	if((a.size()==1&&a.front()=='0')&&(b.size()==1&&b.front()=='0'))e=true;
	cout<<(e?'E':p?'P':'S')<<"\n"s;
}