#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < int(n); i++)
using ll = long long;
using P = pair<int, int>;

int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    
    int n; cin >> n;
    vector<int> a(9);
    rep(i, 9) cin >> a[i];
    string s = "";
    rep(i, 9) {
        rep(j, a[i]) s += to_string(i + 1);
    }
    reverse(s.begin(), s.end());
    cout << s << endl;
    return 0;
}