#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
typedef long long ll;


void solve() {
    ll n;
    cin >> n;
    vector<ll> A(n);
    for (ll i = 0; i < n; ++i) cin >> A[i];
    sort(A.begin(), A.end());
    modint998244353 x = 0;

    for (ll i = 0; i < n; ++i) {
        x *= 10;
        x += A[i];
    }

    cout << x.val() << endl;


}

int main() {
    solve();
    return 0;
}