/*
 * 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.*;

class JamC
{

public static void main(String args[])throws Exception
{

FileReader fr = new FileReader("C-small-attempt0.in"); 
BufferedReader br = new BufferedReader(fr); 

FileWriter fw= new FileWriter("out.txt");

BufferedWriter bw=new BufferedWriter(fw);
PrintWriter pw= new PrintWriter(bw);

int t=Integer.parseInt(br.readLine());int l=0;

String str="",A="",B="",n="",m="";int a=0,b=0,count=0;

for(int i=0;i<t;i++)
{
str=br.readLine();
StringTokenizer st=new StringTokenizer(str);
A=st.nextToken();
B=st.nextToken();
l=A.length();
a=Integer.parseInt(A);
b=Integer.parseInt(B);
count=0;

for(int j=a;j<=b;j++)
{
n=""+j;
for(int k=1;k<l;k++)
{
if(n.charAt(k)=='0')
{}
else if(n.charAt(k)>B.charAt(0))
{}
else if(n.charAt(k)<n.charAt(0))
{}
else if(n.charAt(k)==B.charAt(0)&&(Integer.parseInt(n.substring(k)+n.substring(0,k))>b))
{}
else if(n.charAt(k)==n.charAt(0)&&(Integer.parseInt(n.substring(k)+n.substring(0,k))<=j))
{}
else if(n.equals(n.substring(k)+n.substring(0,k)))
{}
else
count++;
}
}

pw.println("Case #"+(i+1)+": "+count);
}

pw.close();
bw.close();
fw.close();
}
}



