/*
 * 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.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;


public class Main 
{

public static HashMap<Character,Character> mapp = new HashMap<Character,Character>();

public static void main(String[] args) throws Exception
{
PrintWriter writer = new PrintWriter(new FileWriter("output.txt"));
BufferedReader input = new BufferedReader(new FileReader("C-small-attempt0.in"));
int size=Integer.parseInt(input.readLine());
for(int i=0; i<size; i++)
{
Set<String> Sett = new HashSet<String>();
String tokens[] = input.readLine().split(" ");
int Llimit = Integer.parseInt(tokens[0]);
int Hlimit = Integer.parseInt(tokens[1]);
for(int j=Llimit; j<Hlimit; j++)
{
Integer num1 = j;
String str1 = num1.toString();
for(int x=0; x<str1.length(); x++)
{
String temp = (String)str1.subSequence(str1.length()-1-x, str1.length()) + (String)str1.subSequence(0, (str1.length()-1-x));

if(Integer.parseInt(temp)>j && Integer.parseInt(temp)<=Hlimit)
{
Sett.add(str1+temp);
}
}
}
writer.println("Case #"+(i+1)+": "+Sett.size());
}
writer.close();
input.close();
}

}