// yuki 1645 AB's abs
// 2021.8.13

#include <stdio.h>
#include <string.h>

typedef long long ll;
#define gc() getchar_unlocked()
#define pc(c) putchar_unlocked(c)

int in() {   // 非負整数の入力
	int n = 0; int c = gc();
	do n = 10 * n + (c & 0xf); while ((c = gc()) >= '0');
	return n;
}

const int mod = 998244353;
inline static int ABS(int a) { return a >= 0? a: -a; }
inline static void add_mod(int *a, int b) { *a = (*a + b) % mod; }
int dp[2][10010]; int N;

int main()
{
	int i, j, k0, k1;

	N = in();;
	dp[0][0] = 1, k0 = 0, k1 = 1;
	int s = 0; for (i = 0; i < N; ++i) {
		int A = in();
		memset(dp[k1], 0, sizeof(dp[0]));
		for (j = 0; j <= s; ++j) if (dp[k0][j]) {
			add_mod(&dp[k1][j+A], dp[k0][j]);
			add_mod(&dp[k1][ABS(j-A)], dp[k0][j]);
		}
		k1 = k0, k0 = !k0;
		s += A;
	}
	int ans = 0;
	for (j = 0; j <= s; ++j) if (dp[k0][j]) {
		add_mod(&ans, (ll)j * dp[k0][j] % mod);
	}
	printf("%d\n", ans);
	return 0;
}