n, p = input().split()
n = int(n)
p = float(p)


def divide(n):
    res = 0
    for i in range(1, int(n ** 0.5) + 1):
        if n % i == 0:
            if i * i == n:
                res += 1
            else:
                res += 2
    return res


mx = 10 ** 6
num = int(mx ** (1 / 2) + 1)
prod = [1] * (num + 10)
q = 1 - p
for i in range(num + 5):
    prod[i + 1] = prod[i] * q

ans = 0

for i in range(2, n + 1):
    yakusu = divide(i)
    if yakusu == 2:
        ans += 1
    else:
        ans += prod[yakusu - 2]
print(ans)