// #define _GLIBCXX_DEBUG
#include <algorithm>
#include <cmath>
#include <complex>
#include <cstdlib>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
using namespace std;
using ll = long long;
using ld = long double;
using P = pair<int, int>;

// #include <atcoder>
// using namespace atcoder;
// using mint = modint1000000007;

// #include <boost/multiprecision/cpp_dec_float.hpp>
// #include <boost/multiprecision/cpp_int.hpp>
// namespace mp = boost::multiprecision;
// using Bint = mp::cpp_int;
// using Bdouble = mp::number<mp::cpp_dec_float<32>>;

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    string ans;
    for (int i = 0; i < 9; i++) {
        int c;
        cin >> c;
        for (int j = 0; j < c; j++) {
            ans.push_back((char)('1' + i));
        }
    }
    reverse(ans.begin(), ans.end());
    cout << ans << endl;
    return 0;
}