#include <bits/stdc++.h>
using namespace std;

void fast_io() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
}

#include <atcoder/modint>
using mint = atcoder::modint998244353;
int main() {
	fast_io();
	int n;
	cin >> n;
	vector<int> a(n);
	int a_sum = 0;
	for (int i = 0; i < n; i++) {
		cin >> a[i];
		a_sum += a[i];
	}
	vector dp(n + 1, vector<mint>(a_sum + 1));
	dp[0][0] = 1;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j <= a_sum; j++) {
			if (dp[i][j].val() == 0) continue;
			dp[i + 1][j + a[i]] += dp[i][j];
			dp[i + 1][abs(j - a[i])] += dp[i][j];
		}
	}
	mint ans = 0;
	for (int j = 0; j <= a_sum; j++) {
		ans += dp[n][j] * j;
	}
	cout << ans.val() << endl;
}