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


public class RecycledNumbers 
{
	public static void main(String[] args) {
		
		Scanner mark = new Scanner(System.in);
		
		int t = mark.nextInt();
		int A, B, counter;
		mark.nextLine();
		
		for (int i = 0; i < t; i++) 
		{
			
			A = mark.nextInt();
			B = mark.nextInt();
			counter = 0;
			
			mark.nextLine();
						
			
			// This is for N
			for (int n = A; n < B; n++) 
			{
				
				HashSet<Integer> ans = new HashSet<Integer>();

				String strval = String.valueOf(n).trim();
				int count = strval.length();
				
				for (int j = 1; j < count; j++) 
				{
					String beg = strval.substring(0, j);
					String end = strval.substring(j);
//					System.out.println(beg+end+" "+end+beg);
					
					int m = Integer.parseInt( end.concat(beg) );
					
					if( (m > n) && (m <= B))
						ans.add(m);
					
				}			
				
				counter += ans.size();
			}
	
			System.out.printf("Case #%d: %d\n",i+1,counter);
			
		}
	}
}
