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.IOException;
import java.io.PrintStream;
import java.util.Scanner;
import java.util.Set;

import com.google.common.collect.Sets;

public class C {

	public static void main(String [] args) throws IOException {
		String inputFile = "src/C-small-attempt0.in";
		Scanner in = new Scanner(new File(inputFile));
		PrintStream out = new PrintStream(inputFile.substring(0, inputFile.length()-2)+"out");
		int cases = in.nextInt();
		for (int c = 1; c <= cases; c++) {
			int a = in.nextInt();
			int b = in.nextInt();
			int count = 0;
			for (int i = a; i < b; i++) {
				String is = String.valueOf(i);
				Set<Integer> matches = Sets.newHashSet();
				for (int j = 1; j < is.length(); j++) {
					is = is.substring(1) + is.charAt(0);
					int t = Integer.parseInt(is);
					if (t > i && t <= b && !matches.contains(t)) {
						count++;
						matches.add(t);
					}
				}
			}
			out.print("Case #"+c+": " + count);
			out.println();
		}
		out.close();
	}
}
