MOD = 998244353
N = 200000
fact = [0 for _ in range(N)]
invfact = [0 for _ in range(N)]
fact[0] = 1
for i in range(1, N):
    fact[i] = fact[i - 1] * i % MOD

invfact[N - 1] = pow(fact[N - 1], MOD - 2, MOD)

for i in range(N - 2, -1, -1):
    invfact[i] = invfact[i + 1] * (i + 1) % MOD

def nCk(n, k):
    if k < 0 or n < k:
        return 0
    else:
        return (fact[n] * invfact[k] % MOD) * invfact[n - k] % MOD

def nPk(n, k):
    if k < 0 or n < k:
        return 0
    else:
        return fact[n] * invfact[n - k] % MOD

def nHk(n, k):
    if n == k == 0:
        return 1
    return nCk(n + k - 1, k)

n = int(input())

S = [[0] * (n + 1) for _ in range(n + 1)]
S[0][0] = 1
S[1][1] = 1
for i in range(2, n + 1):
    for j in range(1, i + 1):
        S[i][j] = S[i - 1][j - 1] + j * S[i - 1][j]
        S[i][j] %= MOD

ans = 1
for i in range(1, n + 1):
    for j in range(i, n + 1):
        tmp = nCk(n, j)
        jj = n - j
        tmp *= S[j][i]
        tmp %= MOD
        tmp *= pow(pow(2, i, MOD) - i, jj, MOD)
        ans += tmp % MOD
        ans %= MOD

print(ans)