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.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Scanner;

/*
 * To change this template, choose Tools | Templates and open the template in
 * the editor.
 */
/**
 *
 * @author megaterik
 */
public class C {

    public static void main(String[] args) throws FileNotFoundException {
        new C().solve();
    }
    
    int[] lastAchivement;
    int calculate(int x, int a, int b)
    {
        String s = Integer.toString(x);
        int res = 0;
        for (int i = 0; i < s.length(); i++)
        {
            int val = Integer.parseInt(s.substring(i).concat(s.substring(0, i)));
            if (val >= a && val <= b && !s.substring(i).concat(s.substring(0, i)).startsWith("0") && val > x && lastAchivement[val] != x)
            {
                res++;
                lastAchivement[val] = x;
              //  out.println(x + " and " + val);
            }
        }
        return res;
    }
    
    PrintWriter out;

    void solve() throws FileNotFoundException {
        Scanner in = new Scanner(new FileReader("src/input.txt"));
        out = new PrintWriter(new FileOutputStream("src/output.txt"));;
        int testCases = in.nextInt();
        for (int t = 1; t <= testCases; t++) {
            int a = in.nextInt();
            int b = in.nextInt();
            lastAchivement = new int[b + 1];
            int res = 0;
            for (int i = a; i <= b; i++)
                res += calculate(i, a, b);
            out.println("Case #" + t + ": " + res);
        }
        in.close();
        out.close();
    }
}
