/*
 * 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.FileInputStream;
import java.io.IOException;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;


public class C {

	public static void main(String[] args) {
		try {
			// so eclipse can read file from system in
			System.setIn(new FileInputStream(new File("small.in")));
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}
		Scanner scanner = new Scanner(System.in);
		long T = scanner.nextLong();
		scanner.nextLine();
		for (int i = 0; i < T; i++) {
			long A = scanner.nextLong();
			long B = scanner.nextLong();
			long count = 0;
			for (long number = A; number <= B; number++) {
				String numberS = String.valueOf(number);
				Set<String> newNumbers = new HashSet<String>();
				for (int k = 1; k < numberS.length(); k++) {
					String newNumberS = numberS.substring(numberS.length() - k) + numberS.substring(0, numberS.length() - k);
					if (newNumbers.contains(newNumberS)) {
						continue;
					}
					newNumbers.add(newNumberS);
					long newNumber = Long.parseLong(newNumberS);
					if (newNumber != number && newNumber > number && newNumber >= A && newNumber <= B) {
						count++;
					}
				}
			}
			System.out.printf("Case #%d: %d%n", i + 1, count);
		}
	}
}
