package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;


public class main {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			System.setOut(new PrintStream(new File("C-large.out")));
			
			Scanner sc = new Scanner(new File("C-large.in"));
			
			int T = sc.nextInt();
			sc.nextLine();
			
			for (int t = 1; t<=T; t++) {
				int y = 0;
				int A = sc.nextInt();
				int B = sc.nextInt();
				
				for (int n = A; n<B; n++) {
					String s = Integer.toString(n);
					
					for (int j = 1; j < s.length(); j++) {
						String s2 = s.substring(j, s.length()) + s.substring(0, j);
						int m = Integer.parseInt(s2);
						if(n<m && m<=B) {
							y++;							
						}
					}
				}
				
				System.out.format("Case #%d: %d%n", t, y);
			}
			
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}		
	}

}
