#include <bits/stdc++.h>

using namespace std;

using i64 = long long;

#define yn(pope) (pope ? "Yes" : "No")

#define rep(i, n, m) for (int i = (n); i < (m); i++)
#define rrep(i, n, m) for (int i = (n); i > m; i--)

#define IINF (1 << 30)
#define INF (1ll << 60)

#define all(v) v.begin(), v.end()

i64 mod = 998244353ll;

struct mint {
  i64 x;

  mint(i64 x = 0):x(x % mod) {}

  mint& operator+=(const mint a) {
    x = (x + a.x) % mod;
    return *this;
  }

  mint& operator-=(const mint a) {
    x = (x - a.x + mod) % mod;
    return *this;
  }

  mint& operator*=(const mint a) {
    x = (x * a.x) % mod;
    return *this;
  }

  mint& operator/=(const mint a) {
    x = (x * a.inv().x) % mod;
    return *this;
  }

  mint operator+(const mint a) const {
    mint res(*this); res.x = (res.x + a.x) % mod;
    return res;
  }

  mint operator-(const mint a) const {
    mint res(*this); res.x = (res.x - a.x + mod) % mod;
    return res;
  }

  mint operator*(const mint a) const {
    mint res(*this); res.x = (res.x * a.x) % mod;
    return res;
  }

  mint operator/(const mint a) const {
    mint res(*this); res.x = (res.x * a.inv().x) % mod;
    return res;
  }

  mint pow(i64 pow) const {
    mint res = 1, base = x;

    while (pow) {
      if (pow & 1) {
        res *= base;
      }

      base *= base;
      pow >>= 1;
    }

    return res;
  }

  mint inv() const {
    return pow(mod - 2); // This is only valid when mod is prime.
  }
};

istream& operator>>(istream& is, mint& a) { return is >> a.x;}
ostream& operator<<(ostream& os, const mint& a) { return os << a.x;}

int main() {
  int N; cin >> N;

  vector A(N, 0ll);

  for (i64 &x : A) { cin >> x; }

  sort(all(A));

  mint x = 0;

  for (i64 a : A) {
    x = x * 10 + a;
  }

  cout << x << endl;

  return 0;
}