#include <bits/stdc++.h>

using namespace std;

int f(string s) {
    int res = (s.length() > 1) ? 3 : s[s.length() - 1] - '0';
    return res;
}

int main() {
    string a, b;
    cin >> a >> b;
    int aa = f(a), bb = f(b);

    if ((aa - 1) * (bb - 1) > 1) {
        cout << "P" << endl;
    } else if ((aa - 1) * (bb - 1) < 1) {
        cout << "S" << endl;
    } else {
        cout << "E" << endl;
    }
    return 0;
}