#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); ++i)

int main() {
  int n;
  cin >> n;
  rep(i, n) {
    int d;
    cin >> d;
    if (d == 1) {
      cout << 10 << endl;
      continue;
    }
    string ans = "9";
    rep(i, d - 1) ans += "0";
    cout << ans << endl;
  }
  return 0;
}