#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  for (int i = 0; i < N; i++){
    int d;
    cin >> d;
    cout << 9;
    for (int j = 0; j < d - 1; j++){
      cout << 0;
    }
    cout << endl;
  }
}