MOD = 998244353

def min_possible_value(N, A):
    A.sort()
    dp = [0] * (N + 1)
    dp[0] = 0
    
    for i in range(1, N + 1):
        dp[i] = (10 * dp[i - 1] + A[i - 1]) % MOD
    
    return dp[N]
N = int(input())
A = list(map(int, input().split()))
result = min_possible_value(N, A)
print(result)