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.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {

	public static void main(String[] args) throws IOException {

		File file = new File("in.txt");
		Scanner scanner = new Scanner(file);
		FileWriter outFile = new FileWriter("out.txt");
		PrintWriter out = new PrintWriter(outFile);

		int N = scanner.nextInt();
		for (int i = 0; i < N; i++) {

			int A = scanner.nextInt();
			int B = scanner.nextInt();
			Set<String> set = new HashSet<String>();

			for (int n = A; n <= B; n++) {

				char[] c = Integer.toString(n).toCharArray();

				for (int k = 0; k < c.length - 1; k++) {

					char temp = c[c.length - 1];
					for (int l = c.length - 1; l > 0; l--) {
						c[l] = c[l - 1];
					}
					c[0] = temp;

					StringBuilder s = new StringBuilder();
					for (int l = 0; l < c.length; l++) {
						s.append(c[l]);
					}

					String m = s.toString();

					if (A <= Integer.parseInt(m) && Integer.parseInt(m) <= B
							&& n < Integer.parseInt(m)) {
						set.add(Integer.toString(n).concat(m));
					}

				}

			}

			out.println("Case #" + (i + 1) + ": " + set.size());

		}

		out.close();
		System.out.println("kla\n");

	}
}
