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

class B
{
	public static void main(String[] args) 
	{
		try
		{
			BufferedReader br = new BufferedReader(new FileReader("B.in"));
			PrintWriter pw = new PrintWriter(new FileWriter("B.out"));
			int X = Integer.parseInt(br.readLine());

			for(int i=0; i<X; i++)
			{
				String[] S = br.readLine().split(" ");
				int A = Integer.parseInt(S[0]);
				int B = Integer.parseInt(S[1]);
				int R = 0;

				int x = 1;
				int n = 0;
				while(A/x > 0) {
					n++;
					x *= 10;
				}

				for(int j=A; j<B; j++) {
					Set<Integer> seen = new HashSet<Integer>();
					for(int k=1; k<n; k++) {
						int p1 = j % (int)Math.pow(10, k);
						int p2 = (int) Math.pow(10, n-k);
						int p3 = j / (int)Math.pow(10, k);
						int y = p1*p2 + p3;
						
						if(j < y && !seen.contains(y) && y <= B) {
							seen.add(y);
							R++;
						}
					}
				}

				pw.printf("Case #%d: %d\n", i+1, R);
				pw.flush();
			}
		}
		catch(Exception e)
		{ 
			e.printStackTrace();
		}
	}
}

package com.unitedcoders.examples.codejam;

import java.io.File;
import java.io.PrintStream;
import java.util.Scanner;

public class RecycledNumbers {

    public static void main(String[] args) throws Exception {

        Scanner scanner = new Scanner(new File("/Users/nh/c.in"));
        PrintStream out = new PrintStream(new File("/Users/nh/c.out"));


        int testcases = scanner.nextInt();
        scanner.nextLine();
        for (int casenr = 1; casenr <= testcases; casenr++) {

            int a = scanner.nextInt();
            int b = scanner.nextInt();

            int p = solve(a, b);

            System.out.printf("Case #%d: %d\n", casenr, p);
            out.printf("Case #%d: %d\n", casenr, p);
        }
    }

    public static int solve(int a, int b) {

        int result = 0;

        String sA = intToString(a);
        String sB = intToString(b);

        for (int i = a; i <= b; i++) {
            if (i < 10) {
                continue;
            }

            String k = intToString(i);
            for (int j = 0; j < sA.length()-1; j++) {
                k = cycle(k);

                if((stringToInt(k)>i) && (stringToInt(k)<=b)){
                    result++;
                }

            }
        }

        return result;

    }

    public static String intToString(int i) {
        StringBuffer sb = new StringBuffer();
        while (i > 0) {
            sb.append(i % 10);
            i = i / 10;
        }

        return sb.reverse().toString();
    }

    public static int stringToInt(String s) {

        return Integer.valueOf(s);
    }

    public static String cycle(String s) {
        StringBuffer sb = new StringBuffer();
        for (int i = 1; i < s.length(); i++) {
            sb.append(s.substring(i, i + 1));
        }
        sb.append(s.substring(0, 1));
        return sb.toString();

    }


}
