#include "bits/stdc++.h"
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;
		}
	}
}