import java.util.Scanner;

public class No441 {

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        String a = s.next();
        String b = s.next();
        int aa = compareWithTwo(a);
        int bb = compareWithTwo(b);
        if (aa == 0 && bb == 0) {
            System.out.println("E");
        } else if (aa >= 0 && bb >= 0) {
            System.out.println("P");
        } else {
            System.out.println("S");
        }
    }

    private static int compareWithTwo(String str) {
        if (str.length() == 1) {
            int num = Integer.parseInt(str);
            return Integer.compare(num, 2);
        }
        return 1;
    }
}