#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i=0; i<(n); i++)
using ll = long long;
using P = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vi>;
using Graph = vvi;

int main(){
  int n;
  cin >> n;
  vi d(n);
  rep(i,n) cin >> d[i];
  rep(i,n){
    if(d[i]==1) cout << 10 << endl;
    else{
      cout << 9;
      rep(j,d[i]-1) cout << 0;
      cout << endl;
    }
  }
}