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.IOException;
import java.util.HashSet;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws IOException {
		Scanner scanner = new Scanner(new File("c:\\eclipse\\3\\C-large.in"));
		int numTc = scanner.nextInt();
		for (int index = 0; index < numTc; index++) {
			int result = 0;
			int a = scanner.nextInt();
			int b = scanner.nextInt();
			for (int i = a; i <= b; i++) {
				if (i < 10) continue;
				int num = findNumPairs(i, a, b);
				result += num;
			}
			System.out.println("Case #" + (index + 1) + ": " + result/2);
		}
	}
	private static int findNumPairs(int num, int a, int b) {
		
		char[] origStr = String.valueOf(num).toCharArray();
		int len = origStr.length;
		char[] newStr = new char[len];
		int result = 0;
		int startIndex = 1;
		HashSet<Integer> consumedSet = new HashSet<Integer>();
		do {
			if (startIndex == len) {
				break;
			}
 			int idx = 0;
			for (int i = startIndex; i < len; i++) {
				newStr[idx++] = origStr[i];
			}
			for (int i = 0; i < startIndex; i++) {
				newStr[idx++] = origStr[i];
			}
			startIndex++;
			int newNum = Integer.parseInt(String.valueOf(newStr));
			if (newNum < a || newNum > b || newNum == num || consumedSet.contains(newNum)) {
				continue;
			}
			result++;
			consumedSet.add(newNum);
		} while(true);
		return result;
	}
}