package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.util.Scanner;

/*
 * Google Code Jam 2012
 * Program by Tommy Ludwig
 * Problem: Recycled Numbers
 * Date: 2012-04-13
 * Time: 02:08 AM
 */


public class recycle {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		
		for (int i = 1; i <= T; i++) {
			int A, B, n, m, y = 0;
			A = in.nextInt();
			B = in.nextInt();
			
			for (int j = 0; j < (B-A); j++) {
				m = B - j;
				String strM = String.valueOf(m);
				
				for (int k = 0; k < (B-A); k++) {
					n = A + k;
					//n must be less than m
					if (n >= m)
						break;
					
					String strN = String.valueOf(n);
					
					for (int l = 1; l < strN.length(); l++) {
						String sub = strN.substring(l);
						String new_strN = sub + strN.substring(0, l);
						
						if (new_strN.equalsIgnoreCase(strM)) {
							y++;
							break;
						}
					}
				}
			}
			System.out.printf("Case #%d: %d\n", i, y);
		}
	}

}
