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.PrintWriter;
import java.util.*;


public class RecycledNumbers {
	public static void main(String[] args) throws Exception {
		Scanner scanner = new Scanner(new File("C-large.in"));
		int num = scanner.nextInt();
		scanner.nextLine();
		PrintWriter writer = new PrintWriter(new File("Answer2.txt"));
		for(int a = 1;a<=num;a++) {
			Map<Integer,Set<Integer>> map = new HashMap<Integer,Set<Integer>>();
			int start = scanner.nextInt();
			int finish = scanner.nextInt();
			int count = 0;
			for(int x = start;x<=finish;x++) {
				map.put(x, new HashSet<Integer>());
				String s = "" + x;
				int length = s.length();
				for(int i=1;i<s.length();i++)
				{
					String f = s.substring(length-i) + s.substring(0,length-i);
					int fin = Integer.valueOf(f);
					if(!f.startsWith("0") && fin<=finish && x<fin) {
						map.get(x).add(fin);
					}
				}
				count+=map.get(x).size();
			}
			
			writer.println("Case #" + a + ": " + count);
			System.out.println("Case #" + a + ": " + count);
			writer.flush();
			
		}
		writer.close();
	}
}
