#include<bits/stdc++.h>
using namespace std;
#include<atcoder/all>
using namespace atcoder;
using ll = long long;
using mint = modint998244353;

int n;
vector<int> a;

void solve(){
	sort(a.begin(),a.end());
	mint ans = 0;
	for(int i = 0; i < n; ++i){
		ans =  ans*10 + a[i];
	}
	cout<<ans.val()<<endl;
}

signed main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cin >> n;
	a = vector<int>(n);
	for(int i = 0; i < n; ++i) cin >> a[i];
	solve();
}