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

class C1small
{
	public static void main(String[] args) throws Exception 
	{
		FileInputStream fis = new FileInputStream("C-small-attempt0.in");
		Scanner scan = new Scanner(fis);
		FileWriter fw = new FileWriter("output.txt");
		int T = scan.nextInt();
		for(int c = 1; c<=T;c++)
		{
			int A = scan.nextInt();
			int B = scan.nextInt();
			int digit = String.valueOf(A).length();
			int count=0;
			
			for(int i=A;i<=B;i++)
			{
				String mut = String.valueOf(i);
				int tmp =0;
				int[] mem = new int[4];
				boolean counted = false;
				for(int j=1;j<digit;j++)
				{
					tmp = Integer.parseInt(mut.substring(j,digit) + (mut.substring(0,j)));
					mem[j-1] = tmp;
					counted = false;
					if(tmp > Integer.parseInt(mut) && tmp >=A && tmp <=B)
					{
						for(int k=0;k<j-1;k++)
						{
							if(mem[k] == tmp)
							{	
								counted = true;
								break;
							}
						}
						if(!counted)
						{
//							System.out.println("counted :"+ A + "<=" +mut +"<"+ tmp +"<=" +B);
							count++;
						}
					}
				}
			}
			if(digit > 1 )
				fw.write("Case #" +c +": "+ count +"\n");
			else
				fw.write("Case #" +c +": "+ 0 +"\n");
		}
		fw.close();
	}
}