MOD = 998244353
n = int(input())
*a, = map(int,input().split())
M = n*200+1
dp = [0]*M
dp[0] = 1
for ai in a:
    ai *= 2
    for i in range(ai,M)[::-1]:
        dp[i] += dp[i-ai]
        dp[i] %= MOD
offset = sum(a)
ans = 0
for i,v in enumerate(dp):
    ans += abs(i-offset)*v%MOD
print(ans%MOD)