/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

import java.io.*;
import java.util.*;

public class RecycledNumbers {
	public static void main(String... args) throws Exception {

		BufferedReader br = new BufferedReader(
		new FileReader(System.getProperty("user.home") + "/Desktop/csmall.in")
		//new InputStreamReader(System.in)
		);

		int times = Integer.parseInt(br.readLine());

		for (int i = 0; i < times; i++) {
			numbers(br.readLine(), i+1);
		}

	}

	public static void numbers(String data, int num) {
		int a = Integer.parseInt(data.split(" ")[0]);
		int b = Integer.parseInt(data.split(" ")[1]);
		int count = 0;
		
		for (int n = a; n < b; n++) {
			String nn = n+"";
			for (int m = n+1; m <= b; m++) {
				String mm = m+"";
				if (nn.length() != mm.length()) {continue;}
				
				boolean check = false;
				for (int i = mm.length() - 1; i >= 0; i--) {
					String news = mm.substring(i);
					String newst = news + mm.substring(0, i);
					check = check(nn, newst);
					if (check) {
						count++;
						break;
					}
				}
				
			}
		}
		
		System.out.println("Case #" + num + ": " + count);
	}
	
	public static boolean check(String a, String b) {
		a = Integer.parseInt(a) + "";
		b = Integer.parseInt(b) + "";
		
		if (a.equals(b) || a.length() != b.length()) {
			return false;
		}
		
		String end = "";
		
		for (int i = b.length(); i >= 0; i--) {
			String first = b.substring(i);
			end = first + b.substring(0, i);
			
			if (a.equals(end)) {
				return true;
			}
		}
		
		return false;
	}
}
