/*
 * 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.File;
import java.io.PrintWriter;
import java.util.*;
import java.util.jar.JarEntry;

/**
 * Created with IntelliJ IDEA.
 * User: vitaly
 * Date: 4/14/12
 * Time: 9:24 AM
 * To change this template use File | Settings | File Templates.
 */
public class Main {

    public static int bruteForce(int start, int end) {
        Set<String> set = new HashSet<String>();
        for (int k = start; k <= end; k++) {
            String repr = Integer.toString(k);
            for (int i = 1; i < repr.length(); i++) {
                String a = repr.substring(0, i);
                String b = repr.substring(i, repr.length());
                int comb = Integer.valueOf(b + a);
                if (comb > k & comb >= start && comb <= end) {
                    String c = "" + k + ":" + comb;
                    set.add(c);
                }
            }
        }
        return set.size();
    }

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

        Scanner scanner = new Scanner(new File("C-small-attempt0.in"));
        PrintWriter pw = new PrintWriter(new File("google.out"));

        int n = scanner.nextInt();
        for(int i = 0; i < n; i++) {
            int start = scanner.nextInt();
            int end = scanner.nextInt();
            int comb = bruteForce(start, end);
            pw.print(String.format("Case #%d: %d%n", i + 1, comb));
        }


        scanner.close();
        pw.close();


    }

}
