import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < n; i++) {
		    int d = sc.nextInt();
		    if (d == 1) {
		        sb.append(10);
		    } else {
		        sb.append(9);
		        for (int j = 1; j < d; j++) {
		            sb.append(0);
		        }
		    }
		    sb.append("\n");
		}
		System.out.print(sb);
   }
}