#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

int main(){
  int N; cin >> N;
  for(int i = 0; i < N; i++){
    int S; cin >> S;
    if(S == 1) cout << 10 << endl;
    else{
      cout << 9;
      for(int j = 1; j < S; j++){
        cout << 0;
      }
      cout << endl;
    }
  }
}