/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

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

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

import java.util.ArrayList;
import java.util.List;


public class RecycledNumbers {

	private int A;
	private int B;
	
	public RecycledNumbers(int A, int B) {
		this.A = A;
		this.B = B;
	}
	
	public int calculate() {
		int result = 0;
		int digitCount = Integer.toString(A).length();
		
		if (digitCount == 1) return 0;
		
		List<String> numbers = new ArrayList<String>();
		for (int i = A; i < B + 1; i++) {
			numbers.add(Integer.toString(i));
		}
		
		for (int i = 0; i < numbers.size(); i++) {
			String number = numbers.get(i);
			
			for (int j = 1; j < digitCount; j++) {
				String reverseNumber = number.substring(j) + number.substring(0, j);
				int reversInt = Integer.parseInt(reverseNumber);
				
				if ((reversInt <= B) && (reversInt > Integer.parseInt(number))) {
//					System.out.println("A(" + A + ") <= " + number + " < " + reverseNumber + " <=B(" + B + ")");
					result++;
				}
			}
		}
		
		return result;
	}
	
	public static List<RecycledNumbers> parseFromFile(List<String> readInput) {
		List<RecycledNumbers> result = new ArrayList<RecycledNumbers>();
		int testCaseCount = Integer.parseInt(readInput.get(0));

		for (int i = 0; i < testCaseCount; i++) {
			String line[] = readInput.get(i + 1).split(" ");

			result.add(new RecycledNumbers(Integer.parseInt(line[0]), Integer.parseInt(line[1])));
		}

		return result;
	}
	
	@Override
	public String toString() {
		return "A = " + A + "; B = " + B;
	}
}
