/*
 * 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.Arrays;
import java.util.Scanner;


public class RecycledNumbers {

	public static int outputLine(String inputLine){
		int count = 0;
		String[] inputArray = inputLine.split(" ");
		ArrayList line = new ArrayList(Arrays.asList(inputArray));
		int min = Integer.parseInt((String) line.get(0));
		int max = Integer.parseInt((String) line.get(1));
		
		
		for (int k = min; k <= max; k++) {
			
			for (int j = min; j <= max; j++) {
				int numbDigits = String.valueOf(min).length();
				for (int x = 0; x <numbDigits; x++) {
					if ((String.valueOf(j).substring(numbDigits - (x+1), numbDigits) + String.valueOf(j).substring(0,numbDigits - (x+1))).equals(String.valueOf(k))) {
						if (k < j) {
						count++;
						}
					}
				}
			}
		}
			
		return  count;
	}
	
	
	public static void main (String [] args) {
		ArrayList answers = new ArrayList();
		System.out.println("Insert a number.");
		int i;
		Scanner scan = new Scanner(System.in);
		i = Integer.parseInt(scan.nextLine());
		
		for (int j = 0; j< i; j++) {
			String inputLine = scan.nextLine();
			answers.add(outputLine(inputLine));
			}
		
		for (int j = 0; j < answers.size(); j++){
			System.out.println("Case #" + (j+1) + ": " + (answers.get(j)));
		}
	}		
}
