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

public class recycled
{
  public static void main(String[] args)
  {
    Scanner in = new Scanner (System.in);
    String scases = in.nextLine(); 
    int T = Integer.parseInt(scases);
    for(int i = 1; i<(T+1); i++)
    {
      String temp1 = in.nextLine();
      String[] temp2 = temp1.split(" ");
      int low = Integer.parseInt(temp2[0]); 
      int high = Integer.parseInt(temp2[1]);
      int count = 0;
      ArrayList<String> checked = new ArrayList<String>();
      for(int test = low; test < high; test++)
      {
	String stest = Integer.toString(test);
	int len = stest.length();
	for(int pos = 1; pos < (len) ; pos++)
	{
	  String scheck = "";
	  scheck += stest.charAt(len-1);
	  scheck += stest.substring(0,len-1);
	  stest = scheck;
	  int check = Integer.parseInt(scheck);

	    if(check > test && check <= high)
	    {
	      count = count +1;
	      checked.add(scheck);
	    }

	  
	}
      }
      System.out.println("Case #"+ i +": "+count);
    }
  }

}
