#include <iostream>
#include <algorithm>
#include <atcoder/modint>
using namespace std;
using ll = long long;

int N;
ll A[202020];
int main(void){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    cin >> N;
    for(int i = 0;i < N;i++)cin >> A[i];
    sort(A, A + N);
    atcoder::modint998244353 ans = 0;
    for(int i = 0;i < N;i++){
        ans = ans * 10 + A[i];
    }
    cout << ans.val() << endl;
    return 0;
}