#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#ifdef LOCAL
#include <algo/debug.h>
#else
#define debug(...) void(0)
#endif
#include<atcoder/all>
using namespace atcoder;
using mint = modint998244353;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N; cin >> N;
    vector<ll> A(N); for(int i = 0; i < N; i++) cin >> A[i];
    sort(A.begin(), A.end());
    mint x = 0;
    for(int i = 0; i < N; i++) {
        x *= 10;
        x += A[i];
    }
    cout << x.val() << endl;
}