/* -*- coding: utf-8 -*-
 *
 * 2729.cc:  No.2729 Addition and Multiplication in yukicoder (Easy) - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_N = 200000;
const int MOD = 998244353;

/* typedef */

typedef long long ll;

/* global variables */

ll as[MAX_N];

/* subroutines */

/* main */

int main() {
  int n;
  scanf("%d", &n);
  for (int i = 0; i < n; i++) scanf("%lld", as + i);
  sort(as, as + n);

  int x = 0;
  for (int i = 0; i < n; i++)
    x = ((ll)x * 10 % MOD + as[i] % MOD) % MOD;

  printf("%d\n", x);
  
  return 0;
}