import sys
input = lambda : sys.stdin.readline().strip()
ni = lambda : int(input())
na = lambda : list(map(int, input().split()))
yes = lambda : print("yes"); Yes = lambda : print("Yes"); YES = lambda : print("YES")
no = lambda : print("no"); No = lambda : print("No"); NO = lambda : print("NO")

n,mod = na()
dp = [0] * (n + 2)
dp[0] = 0
dp[1] = 1
F = [0] * (n + 2)
F[0] = 0
F[1] = 0
F[2] = 1

for i in range(2, n+2):
    res = 0
    # x + y + z = i- 1
    for x in range(i):
        y = i - 1 - x
        # print(i, x, y, z)
        res += dp[x] * F[y]
        res %= mod
    dp[i] = res
    if i * 2 < n + 2:F[i*2] += dp[i] * dp[i]
    for x in range(i):
        if x + i < n + 2:
            F[x + i] += dp[x] * dp[i] * 2 % mod
# print(dp)

print(dp[-1])