package codejam;

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

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.util.Scanner;

import jp.ne.sakura.yuki2006.CodeJam.CodeJam;
import jp.ne.sakura.yuki2006.CodeJam.ITestCase;

/**
 *
 */

/**
 * @author yuki
 *
 */
public class RecycledNumbers implements ITestCase {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new CodeJam(new RecycledNumbers(), "Cout.txt");
	}

	/*
	 * (é Javadoc)
	 *
	 * @see jp.ne.sakura.yuki2006.CodeJam.ITestCase#testCase(java.util.Scanner)
	 */
	@Override
	public String testCase(Scanner stdIn) {
		int A = stdIn.nextInt();
		int B = stdIn.nextInt();
		int totalCount = 0;
		for (int i = A; i <= B; i++) {
			int length = String.valueOf(i).length();

			for (int j = 0; j < length; j++) {
				int radix = (int) (Math.pow(10, j));
				int top = i / radix;
				int other = i % radix;

				Integer rn = Integer.parseInt(String.valueOf(other) + String.valueOf(top));

				if (rn<=B && i < rn) {
					System.err.println(i);
					System.err.println(rn);
					System.err.println();
					totalCount++;
				}
			}
		}
		return totalCount + "";
	}
}
