P, C = map(int, input().split())

xs = [2, 3, 5, 7, 11, 13]
ys = [4, 6, 8, 9, 10, 12]


def f(a):
    res = 0
    for x in a:
        res += x / len(a)

    return res


ans = (f(xs) ** P) * (f(ys) ** C)
print(ans)