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.InputStreamReader;
import java.util.HashSet;
import java.util.Scanner;

public class Recycled_Num {

	public static void main(String[] args) {
		//long currentTime = System.currentTimeMillis();
		Scanner input_file = new Scanner(new InputStreamReader(System.in));
		String input_line = null;
		String[] numb_arr;
		int Case_Count = 0;
		int st_num = 0;
		int end_num = 0;
		int pair_count = 0;
		int digitCount = 0;
		StringBuilder recycle_number = new StringBuilder();
		int newNumber = 0;
		String newNumberString;
		HashSet<String> recycle_numbers = new HashSet<String>();
		while (input_file.hasNextLine()) {
			input_line = input_file.nextLine();
			numb_arr = input_line.split(" ");
			if(numb_arr != null && numb_arr.length == 1) {
				/*numberOfTestCases = Integer.parseInt(numb_arr[0]);*/
			} else if (numb_arr != null && numb_arr.length == 2) {
				digitCount = numb_arr[0].length();
				st_num = Integer.parseInt(numb_arr[0]);
				end_num = Integer.parseInt(numb_arr[1]);
				while(st_num <= end_num) {
					newNumberString = "" + st_num;
					for(int i = 1; i < digitCount; i++) {
						recycle_number = recycle_number.append(newNumberString.substring(i) + newNumberString.substring(0, i));
						newNumber = Integer.parseInt(recycle_number.toString());
						if(newNumber > st_num && newNumber <= end_num) {
							recycle_numbers.add(recycle_number.toString());
						}
						recycle_number.delete(0, digitCount);
					}
					pair_count = pair_count + recycle_numbers.size();
					st_num++;
					recycle_numbers.clear();
				}
				System.out.println("Case #" + Case_Count + ": " + pair_count);
			}
			Case_Count++;
			pair_count = 0;
			st_num = 0;
			end_num = 0;
			digitCount = 0;
			newNumber = 0;
			recycle_number.delete(0, digitCount);
		}
		//System.out.println(System.currentTimeMillis() - currentTime);
	}
}
