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


public class RecycledNumbers {

	public static void main(String[] args) throws FileNotFoundException {
		Scanner sc = new Scanner(new File("input"));
		int n=sc.nextInt();
		for (int i = 1; i <= n; i++) {
			int N=sc.nextInt();
			int M=sc.nextInt();			
			Set<String> set=new HashSet<String>();
			for(int j=N;j<=M;j++) {
				String currentNumber=String.valueOf(j);
				if(currentNumber.length()==1) {
					continue;
				}				
				for(int k=1;k<currentNumber.length();k++){					
					StringBuilder newNumber=new StringBuilder();
					newNumber.append(currentNumber.substring(k)).append(currentNumber.substring(0, k));
					int num1=Integer.parseInt(newNumber.toString());
					if(currentNumber.length()!=String.valueOf(num1).length()){
						continue;
					}					
					if(j!=num1 && num1>=N && num1<=M) {
						set.add(Math.min(j,num1)+":"+Math.max(j,num1));
					}
				}
			}
			System.out.println("Case #" + i + ": "+set.size());
		}
		

	}

}
