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.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) {
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("input.txt")));
				String line = br.readLine();
				BufferedWriter out = new BufferedWriter(new FileWriter("output.txt"));
				int tests = Integer.valueOf(line.trim());
				for (int i = 0; i < tests; i++) {
					String[] number = br.readLine().split(" ");
					int a = Integer.valueOf(number[0]);
					int b = Integer.valueOf(number[1]);
					int digits = number[1].length();
					int result = 0;
					int multiplier = 1;
					for (int j = 0; j < digits - 1; j++) {
						multiplier *= 10;
					}
					for (int j = a; j < b; j++) {
						int value = j;
						int size = 0;
						while (true) {
							value = value/10 + (value % 10)*multiplier;
							if (a <= value && value <= b) {
								size++;
							}
							
							if (a <= value && value < j) {
								break;
							}
							if (value == j) {
								result += size*(size - 1)/2;
								break;
							}
						}
					}
					out.write("Case #"+ (i + 1) +": " + result + "\n");
				}
				out.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}