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.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class C {

	public static void main(String[] args) {
		int n = 10;
		int m = 30;
		String line;
		String filename1 = "C-small-attempt0.in";
		String filename2 = "outC.out";
		BufferedReader input;
		BufferedWriter output;
		int counter = 0;
		int poruSkaicius = 0;
		try {
			input = new BufferedReader(new FileReader(filename1));
			output = new BufferedWriter(new FileWriter(filename2));
			while ((line = input.readLine()) != null) {
				if (counter == 0) {
				} else {
					n = Integer.parseInt(line.split("\\s")[0]);
					m = Integer.parseInt(line.split("\\s")[1]);
					output.write("Case #" + counter + ": ");
					//
					for (int i = n; i < m; i++) {
						for (int j = i; j <= m; j++) {
							poruSkaicius += skaiciuok(i, j);
						}
					}
					//
					output.write(poruSkaicius+"\n");
//					System.out.println(poruSkaicius);
					poruSkaicius=0;
				}
				counter++;
			}
			input.close();
			output.close();
		} catch (IOException e1) {
			System.exit(1);
		}

	}

	public static int skaiciuok(int pirmas, int antras) {
		//		System.out.println(pirmas+":"+antras);
		//		System.out.println(("" + pirmas).length());
		char[] temp = (pirmas + "").toCharArray();
		int counter = 0;
		for (int i = 0; i < ("" + pirmas).length()-1; i++) {
			//			System.out.print(temp);
			//			System.out.print("|");
			char tempChar = temp[temp.length -1];
			for (int j = temp.length - 1; j > 0; j--) {
				temp[j] = temp[j - 1];
			}
			temp[0] = tempChar;
			String tempString = new String(temp);
			//			System.out.println(tempString);
			if (tempString.equals(antras + "") && !tempString.equals(pirmas + "")) {
//				System.out.println(tempString+"/" + pirmas);
				counter++;
				break;
			}
		}
		//		System.out.print(counter);
		return counter;
	}
}
