#include <iostream>
#include <vector>
#include <algorithm>
#include <atcoder/modint>
using namespace std;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(n); i++)

const i64 MOD = 998244353;
using m32 = atcoder::static_modint<MOD>;


int main() {
  int N; cin >> N;
  vector<int> A(N); rep(i,N) cin >> A[i];
  int S = 0; for(int a : A) S += a;
  vector<m32> dp(S+1,0);
  dp[0] = 1;
  for(int a : A){
    for(int k=S; k>=a; k--) dp[k] += dp[k-a];
  }
  m32 ans = 0;
  rep(i,S+1) ans += dp[i] * abs(i-(S-i));
  cout << ans.val() << endl;
  return 0;
}


struct ios_do_not_sync{
  ios_do_not_sync(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
  }
} ios_do_not_sync_instance;