#include <bits/stdc++.h>

typedef long double ld;
typedef long long ll;
using namespace std;
int di[] = {1, 0, -1, 0, 0, 1, -1, 1};
int dj[] = {0, 1, 0, -1, -1, 0, 1, -1};

const ll oo = 1e18;
const int N = 2e6 + 5, M = 1e4 + 5, MOD = 998244353;
#define EPS 1e-9

int n, m, k;
string s[N];

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    //memset(dp, -1, sizeof dp);
    cin >> n;
    for (int i = 1; i <= n; i++) {
        cin >> m;
        for (int j = 1; j <= n - i; j++) s[i].push_back('4');
        while (s[i].size() < n + m) s[i].push_back('5');
    }
    for (int i = 1; i <= n; i++) cout << s[i] << " ";
    return 0;
}