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.google.codejam.Qualification2012;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class C {
	
	public static void main(String[] args) throws IOException {
		Scanner scanner = new Scanner(new BufferedReader(new FileReader(args[0] + ".in")));
		Writer writer = new BufferedWriter(new FileWriter(args[0] + ".out"));
		
		int T = scanner.nextInt();
		Set<Integer> set = new HashSet<Integer>();

		for (int x = 1; x <= T; ++x) {
			int A = scanner.nextInt();
			int B = scanner.nextInt();
			
			int y = 0;
			if (B >= 21) {
				for (int n = A; n < B; ++n) {
					set.clear();
					int nDigits = getDigits(n);
					
					int k1 = 10;
					int k2 = 1;
					for (int i = 0; i < nDigits - 1; ++i)
						k2 *= 10;
					
					int n1 = n / k1;
					int n2 = n % k1;										
					for (int i = 0; i < nDigits - 1; ++i) {
						int m = n2 * k2 + n1;
						if (n2 != 0 && m > n && m <= B && !set.contains(m)) {
							//System.out.println(n + ": " + n2 + " " + n1);
							set.add(m);
							++y;
						}
						
						k1 *= 10;
						k2 /= 10;
						n1 = n / k1;
						n2 = n % k1;
					}
				}
			}
			
			System.out.println("Case #" + x + ": " + y);
			writer.write("Case #" + x + ": " + y + "\n");
		}
		
		writer.close();
		scanner.close();
	}
	
	static int getDigits(int n) {
		if (n == 0)
			return 1;
		
		int result = 0;
		
		while (n > 0) {
			n /= 10;
			++result;
		}		
		
		return result;
	}

}
