#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
int main() {
  ll N; cin >> N;
  for(int i = 0; i < N; i++) {
    int a; cin >> a;
    string ans = "9";
    if(a ==1) {
      cout << 10 << endl;
      continue;
    }
    for(int i = 0; i < a - 1; i++) {
      ans += '0';
    }
    cout << ans << endl;
  }
}