#include <bits/stdc++.h>
using namespace std;

int n;

int main() {
  cin >> n;
  while (n--) {
    int d;
    cin >> d;
    if (d == 1)
      cout << 10 << endl;
    else {
      cout << 9;
      for (int i = 0; i < d - 1; ++i) cout << 0;
      cout << endl;
    }
  }

  return 0;
}