import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
package com.google.codejam;

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

/**
 * User: svasilinets
 * Date: 14.04.12
 * Time: 11:58
 */
public class QualC {


    private static int getDigitCount(int k) {
        int r = 0;
        while (k != 0) {
            k /= 10;
            r++;
        }

        return r;
    }

    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new FileReader("c.in"));
        BufferedWriter writer = new BufferedWriter(new FileWriter("c.out"));
        int tests = Integer.parseInt(reader.readLine());
        for (int t = 1; t <= tests; t++) {
            StringTokenizer tokenizer = new StringTokenizer(reader.readLine());
            int a = Integer.parseInt(tokenizer.nextToken());
            int b = Integer.parseInt(tokenizer.nextToken());
            int d = getDigitCount(a);
            int result = 0;
            int tp = 1;
            for (int i = 0; i < d; i++) {
                tp *= 10;
            }
            for (int i = a; i <= b; i++) {
                HashSet<Integer> h = new HashSet<Integer>();
                int p = 1;
                for (int j = 0; j < d - 1; j++) {
                    p *= 10;
                    int rest = i % p;
                    int del = i / p;
                    int pretend = rest * (tp / p) + del;
                    if (pretend > i && pretend <= b && !h.contains(pretend)){
                        result++;
                        h.add(pretend);
                    }
                }
            }
            writer.write("Case #" + t + ": " + result);
            writer.newLine();
        }
        writer.close();
    }
}
