#include<iostream>
#include<algorithm>
#include<string>
#include<math.h>
#include<bitset>
#include <vector>
#include<bitset>
#include <iomanip>
#include <map>
#include <set>
#include <stack>
#include <deque>
#include <climits>
#include <queue>
using namespace std;


int main() {
	
	int N;
	cin >> N;
	for (int i = 1; i <= N; i++) {
		int D;
		cin >> D;
		if (D == 1)cout << 10 << endl;
		else {
			cout << 9;
			for (int j = 1; j < D; j++)cout << 0;
			cout << " " << endl;
		}
	}


	
}