#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;

int N, d;

int main() {
  cin >> N;
  for (int i = 0; i < N; i++) {
    cin >> d;
    if (d == 1) cout << 10 << endl;
    else {
      cout << '9' << string(d - 1, '0') << endl;
    }
  }
  return 0;
}