#include <bits/stdc++.h>

using namespace std;
using ll = long long;
const int INFint = 1e9+1;
const ll INFll = (ll)1e18+1;
ll MOD=1e9+7;
#define printa(x,n) for(int i = 0; i < n; i++){ cout << (x[i]) << " \n"[i==n-1];};


int main(){
  int N;
  cin>>N;
  vector<int> A(N);
  for(int i(0);i<N;i++) cin>>A[i];
  for(int i(0);i<N;i++){
    if(A[i] == 1){
      cout << 10 << endl;
      continue;
    }
    cout << 9;
    for(int j(0);j<A[i]-1;j++) cout << 0;
    cout << endl;
  }
  return 0;
}