import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] d = new int[n];
		for (int i = 0; i < n; i++) {
			d[i] = sc.nextInt();
		}
		sc.close();

		for (int i = 0; i < n; i++) {
			if (d[i] == 1) {
				System.out.println(10);
			} else {
				System.out.print(9);
				for (int j = 1; j < d[i]; j++) {
					System.out.print(0);
				}
				System.out.println();
			}
		}
	}
}