/*
 * 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.Scanner;
import java.util.Set;
import java.util.TreeSet;

/**
 * Created by IntelliJ IDEA.
 * User: Linkov Mikl
 * Date: 15.04.12
 * Time: 3:15
 * To change this template use File | Settings | File Templates.
 */
public class ProblemC {
    public static void main(String [] args) {
        Scanner scanner = new Scanner(System.in);

        int testCount = scanner.nextInt();

        for (int i = 0; i < testCount; i++) {
            int left =scanner.nextInt();
            int right = scanner.nextInt();
            int answer = 0;

            for (int value = left; value < right + 1; value++) {
                String str = String.valueOf(value);


                StringBuilder build = new StringBuilder(str);
                Set<Integer> set = new TreeSet<Integer>();
                for (int j = 1; j < str.length(); j++) {

                    build.append(build.charAt(0));
                    build.delete(0, 1);

                    if (build.charAt(0) == '0') {
                        continue;
                    }
                    int v1 = Integer.parseInt(build.toString());
                    int v2 = Integer.parseInt(str);

                    if ((v1 >= left) && (v1 <= right)) {
                        if ((v1 > v2)) {
                            if (!set.contains(v1)) {
                                answer++;
                                set.add(v1);
                            }
                        }
                    }
                }


            }
            System.out.println("Case #" + (i + 1) + ": " + answer);
        }
    }
}
