#include <stdio.h>

const int Mod = 998244353;

long long pow_mod(int n, long long k)
{
	long long N, ans = 1;
	for (N = n; k > 0; k >>= 1, N = N * N % Mod) if (k & 1) ans = ans * N % Mod;
	return ans;
}

int main()
{
	int N;
	scanf("%d", &N);
	
	int i, j, comb[5001][5001];
	for (i = 1, comb[0][0] = 1; i <= N; i++) for (j = 1, comb[i][0] = 1, comb[i][i] = 1; j < i; j++) comb[i][j] = (comb[i-1][j-1] + comb[i-1][j]) % Mod;

	static int dp[5001][5001], tmp;
	long long ans = 1;
	for (j = 1, dp[0][0] = 1; j <= N; j++) dp[0][j] = 0;
	for (i = 1; i <= N; i++) {
		tmp = pow_mod(2, i) - i;
		if (tmp < 0) tmp += Mod;
		for (j = 0; j < i; j++) dp[i][j] = 0;
		for (; j <= N; j++) {
			dp[i][j] = (dp[i-1][j-1] + (long long)i * dp[i][j-1]) % Mod;
			ans += (long long)dp[i][j] * comb[N][j] % Mod * pow_mod(tmp, N - j) % Mod;
		}
	}
	printf("%lld\n", ans % Mod);
	fflush(stdout);
	return 0;
}