a, b = map(int, input().split())

if a == 0 or b == 0:
    if a == 0 and b == 0:
        print("E")
    else:
        print("S")
elif a == 1 or b == 1:
    print("S")
else:
    if a == 2 and b == 2:
        print("E")
    else:
        print("P")