#include <bits/stdc++.h>

// #include <atcoder/all>

#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;
// using namespace atcoder;
using ll = long long;
using p = pair<ll, ll>;
// #define rep(i, n) for (ll i = 0; i < (ll)(n); i++)

int main() {
    int n;
    cin >> n;
    vector<int> v;
    for (int i = 1; i <= 9; i++) {
        int a;
        cin >> a;
        rep(j, a) { v.push_back(i); }
    }
    sort(v.rbegin(), v.rend());
    for (const int& i : v) {
        cout << i;
    }
    cout << endl;
    return 0;
}