#include <iostream>
#include <string>
#include <algorithm>
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
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;
		}
	}
}