#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#include <stack>
#include <array>
#define popcount __builtin_popcount
using namespace std;
typedef long long int ll;
typedef pair<int, int> P;

int main()
{
    int n; cin>>n;
    for(int i=0; i<n; i++){
        int d; cin>>d;
        if(d==1){
            cout<<10<<endl;
        }else{
            cout<<9;
            for(int j=0; j<d-1; j++) cout<<0;
            cout<<endl;
        }
    }
	return 0;
}