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.io.File;
import java.io.PrintWriter;
import java.util.*;
import java.util.jar.JarEntry;

/**
 * Created with IntelliJ IDEA.
 * User: vitaly
 * Date: 4/14/12
 * Time: 9:24 AM
 * To change this template use File | Settings | File Templates.
 */
public class Main {

    public static int bruteForce(int start, int end) {
        Set<String> set = new HashSet<String>();
        for (int k = start; k <= end; k++) {
            String repr = Integer.toString(k);
            for (int i = 1; i < repr.length(); i++) {
                String a = repr.substring(0, i);
                String b = repr.substring(i, repr.length());
                int comb = Integer.valueOf(b + a);
                if (comb > k & comb >= start && comb <= end) {
                    String c = "" + k + ":" + comb;
                    set.add(c);
                }
            }
        }
        return set.size();
    }

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

        Scanner scanner = new Scanner(new File("C-small-attempt0.in"));
        PrintWriter pw = new PrintWriter(new File("google.out"));

        int n = scanner.nextInt();
        for(int i = 0; i < n; i++) {
            int start = scanner.nextInt();
            int end = scanner.nextInt();
            int comb = bruteForce(start, end);
            pw.print(String.format("Case #%d: %d%n", i + 1, comb));
        }


        scanner.close();
        pw.close();


    }

}
