package qual;

import java.util.Scanner;

public class RecycledNumbers {

	public static void main(String[] args) {
		new RecycledNumbers().run();

	}

	private void run() {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int t = 0; t < T; t++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int result = solve(A, B);
			System.out.printf("Case #%d: %d\n", t + 1, result);
		}
	}

	public int solve(int A, int B) {
		int result = 0;
		for (int i = A; i <= B; i++) {
			int dig = (int) Math.log10(A/*same as B*/) + 1;
			int aa = i;
			for (int d = 0; d < dig - 1; d++) {
				aa = (aa % 10) * (int)Math.pow(10, dig - 1) + (aa / 10);
				if (i == aa) {
					break;
				}
				if (i < aa && aa <= B) {
//					System.out.printf("(%d, %d) ", i, aa);
					result++;
				}
			}
		}
		return result;
	}

}

package de.hg.codejam.tasks.io;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;

public abstract class Writer {

	public static String generateOutputPath(String inputPath) {
		return inputPath.substring(0, inputPath.lastIndexOf('.') + 1) + "out";
	}

	public static void print(String[] output) {
		for (String s : output)
			System.out.println(s);
	}

	public static void write(String[] output) {
		for (int i = 0; i < output.length; i++)
			System.out.println(getCase(i + 1, output[i]));
	}

	public static void write(String[] output, String path) {
		try (BufferedWriter writer = new BufferedWriter(new FileWriter(path,
				false))) {
			for (int i = 0; i < output.length; i++) {
				writer.append(getCase(i + 1, output[i]));
				writer.newLine();
				writer.flush();
			}
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	private static String getCase(int number, String caseString) {
		return "Case #" + (number) + ": " + caseString;
	}

}
