package qual;

import java.util.Scanner;

public class RecycledNumbers {

	public static void main(String[] args) {
		new RecycledNumbers().run();

	}

	private void run() {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int t = 0; t < T; t++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int result = solve(A, B);
			System.out.printf("Case #%d: %d\n", t + 1, result);
		}
	}

	public int solve(int A, int B) {
		int result = 0;
		for (int i = A; i <= B; i++) {
			int dig = (int) Math.log10(A/*same as B*/) + 1;
			int aa = i;
			for (int d = 0; d < dig - 1; d++) {
				aa = (aa % 10) * (int)Math.pow(10, dig - 1) + (aa / 10);
				if (i == aa) {
					break;
				}
				if (i < aa && aa <= B) {
//					System.out.printf("(%d, %d) ", i, aa);
					result++;
				}
			}
		}
		return result;
	}

}

import java.io.*;
import java.util.LinkedList;
import java.util.StringTokenizer;

public class RecycledNumbers 
{
    public static void main(String[] args) 
    {
       StringTokenizer st;
       BufferedReader br = null;
 
		try {
                        FileWriter fstream = new FileWriter("output.out");
                        BufferedWriter out = new BufferedWriter(fstream);
			String sCurrentLine;
 
			br = new BufferedReader(new FileReader("C-small-attempt0.in"));
                        sCurrentLine = br.readLine();//no. of cases
                        int i = 1;
                        while ((sCurrentLine = br.readLine()) != null) 
                        {     
                            out.write("Case #" + i++ + ": ");
                            st = new StringTokenizer(sCurrentLine," ");
                            String n = st.nextToken();
                            int N = Integer.parseInt(n);
                            int m = Integer.parseInt(st.nextToken());
                            int count = 0;
                            for (int j = N; j < m; j++) 
                            {
                                String recycled = Integer.toString(j);
                                LinkedList<String> possible_rotations = new LinkedList<String>();
                                for (int k = 0; k < n.length(); k++)
                                {
                                    recycled = recycled.substring(1)+recycled.charAt(0);
                                    if(!possible_rotations.contains(recycled) && Integer.parseInt(recycled) > j && Integer.parseInt(recycled) <= m)
                                        count++;
                                    possible_rotations.addLast(recycled);
                                }
                            }
                            out.write(count + "\n");
                        }
                        out.close();
 
		} catch (IOException e) {
			e.getMessage();
		} finally {
			try {
				if (br != null)br.close();
			} catch (IOException ex) {
				ex.getMessage();
			}
		} 
    }
}
