//#include <atcoder/all>
#include <bits/stdc++.h>
#include <cmath>
using namespace std;
//using namespace atcoder;
using ll = long long;
#define all(A) A.begin(),A.end()
using vll = vector<ll>;
#define rep(i, n) for (long long i = 0; i < (long long)(n); i++)
using Graph = vector<vector<ll>>;

int main() {
	ll N;
	cin>>N;
	vll C(9);
	rep(i,9)cin>>C[i];
	rep(i,9){
		rep(j,C[8-i])cout<<char('0'+9-i);
	}
	cout<<endl;

}