#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  ll n;
  cin >> n;
  while (n--) {
    ll d;
    cin >> d;
    if (d == 1) {
      cout << 10 << '\n';
      continue;
    }
    cout << 9;
    while (--d) cout << 0;
    cout << '\n';
  }
}