#include<iostream>
#include <bits/stdc++.h>
using namespace std;
#include<deque>
#define rep(i,a,b) for(LL i = a;i<b; i++)
#define rrep(i,a,b) for(LL i = a;i>b; i--)
#define tobirep(i,a,b,c) for(LL i = a;i<b; i+=c)
#define tobirrep(i,a,b,c) for(LL i = a;i>b; i-=c)
#define INF  2000000000
#define ooki 9,223,372,036,854,775,807
#define tii -9,223,372,036,854,775,808
typedef long long LL;
int main(){
 LL n;
  cin >> n;
  rep(i,0,n){
    LL k;
    cin >> k;
    cout << 9;
   rep(i,0,k-1){
    cout << 0 ;
   }
    cout << endl;
  }
}