def main():
    A, B = map(int, input().split())
    if A == 0 and B == 0:
        print("E")
        return
    if A == 0 or B == 0:
        print("S")
        return
    if A == 1 or B == 1:
        print("S")
        return
    if A == 2 and B == 2:
        print("E")
        return
    print("P")


if __name__ == "__main__":
    main()