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);
	}
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package test;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

/**
 *
 * @author Jeric Bryle Sy Dy
 */
public class GJamC2 {

	private static class Ref {

		public int cnt;
		public Set<String> set;

		public Ref() {
			cnt = 0;
			set = new HashSet<String>();
		}
	}

	private static void permuteMove(char[] arr, int len, String strN, String strB, Ref ref) {
		int arrLen = arr.length;
		char[] result = new char[arrLen];

		int index = 0;
		for (int i = arrLen - len; i < arrLen; ++i) {
			result[index++] = arr[i];
		}
		for (int i = 0; i < arrLen - len; ++i) {
			result[index++] = arr[i];
		}

		String strCur = new String(result);
		if (strCur.compareTo(strN) > 0 && strCur.compareTo(strB) <= 0 && !ref.set.contains(strCur)) {
			ref.set.add(strCur);
			++ref.cnt;
		}
	}

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new FileReader("C:/Users/Jeric Bryle Sy Dy/Downloads/C-small-attempt0.in"));
		PrintWriter out = new PrintWriter("C:/Users/Jeric Bryle Sy Dy/Downloads/C-small-attempt0.out");

		int t = Integer.parseInt(br.readLine());

		for (int tIter = 0; tIter < t; ++tIter) {
			Scanner s = new Scanner(br.readLine());

			int a = s.nextInt();
			int b = s.nextInt();

			Ref ref = new Ref();

			for (int n = a; n < b; ++n) {
				ref.set.clear();
				String strN = String.valueOf(n);
//				permute(strN.toCharArray(), 0, strN, String.valueOf(b), 1, ref);
				for (int len = 1; len < strN.length(); len++) {
					permuteMove(strN.toCharArray(), len, strN, String.valueOf(b), ref);
				}
			}

			s.close();

			out.printf("Case #%d: %d\n", tIter + 1, ref.cnt);
		}

		br.close();
		out.close();
	}
}
