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.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Set;
import java.util.TreeSet;

public class RecycledNumbers {

	public static void main(String[] args) throws IOException {
		System.setErr(new PrintStream("qualification/C-small-attempt1.out"));
		FileReader reader = new FileReader("qualification/C-small-attempt1.in");
		BufferedReader br = new BufferedReader(reader);
		int tc = Integer.parseInt(br.readLine());
		for (int t = 0; t < tc; t++) {
			String[] nums = br.readLine().split("\\s");
			String a = nums[0];
			String b = nums[1];
			int min = Integer.parseInt(a);
			int max = Integer.parseInt(b);
			int answer = 0;
			for (int i = min; i < max; i++) {
				String n = String.valueOf(i);
				Set<String> set = new TreeSet<String>();
				for (int j = 0; j < n.length(); j++) {
					set.add(n.substring(j) + n.substring(0, j));
				}
				for (String s : set) {
					if (n.compareTo(s) < 0 && b.compareTo(s) >= 0) {
						answer++;
					}
				}
			}
			System.out.printf("Case #%d: %d\n", t + 1, answer);
			System.err.printf("Case #%d: %d\n", t + 1, answer);
		}
	}

}
