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);
	}
}

/**
 * Google CodeJam 2012
 * Qualification round - Problem C
 * Recycled Numbers
 * 
 * Solved by Üllar Soon <positivew@gmail.com>
 */
package eu.positivew.codejam.recycled;

import java.io.BufferedReader;
import java.io.IOException;

import eu.positivew.codejam.framework.CodeJamInputCase;
import eu.positivew.codejam.framework.CodeJamInputParser;


/**
 * Recycled Numbers input parser class.
 * 
 * @author Üllar Soon <positivew@gmail.com>
 */
public class RecycledNumbersParser implements CodeJamInputParser {

	@Override
	public CodeJamInputCase readCase(BufferedReader input) {
		CodeJamInputCase inCase;
		
		try {
			String line = input.readLine();
			String[] args = line.split(" ");
			Integer[] abArr = new Integer[args.length];
			for(int i = 0; i < args.length; i++) {
				try {
					abArr[i] = Integer.parseInt(args[i]);
				}
				catch(NumberFormatException ex) {
					System.err.println("Badly formatted test case data!");
				}
			}
			inCase = new RecycledNumbersCase(abArr);
			return inCase;
		}
		catch (IOException e) {
			System.err.println("Failed to read test case data!");
			return null;
		}
	}

}
