#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const long long INF = 1001001001;
const long long MOD = /**/1000000007;//*/998244353;
const double EPS = 1e-10;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n;
    cin>>n;
    ll d[n];
    for(int i=0;i<n;i++)cin>>d[i];
    for(int i=0;i<n;i++){
        cout<<9;
        for(int j=0;j<d[i]-1;j++)cout<<0;
        cout<<endl;
    }
}