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 ru.guredd.codejam;

import java.io.*;
import java.util.ArrayList;
import java.util.List;

public class Main {

    protected static List<String> inputData = new ArrayList<String>();
    protected static List<String> outputData = new ArrayList<String>();

    public static void loadInputData(String fileName) throws IOException {
        BufferedReader in = null;
        try {
            inputData.clear();
            String line;
            in = new BufferedReader(new FileReader(fileName));

            if (!in.ready())
                throw new IOException();

            while ((line = in.readLine()) != null)
                inputData.add(line);
        } finally {
            if(in != null) {
                in.close();
            }
        }
    }

    public static void saveOutputData(String fileName) throws IOException {
        BufferedWriter out = null;
        try {
            out = new BufferedWriter(new FileWriter(fileName));

            for (String anOutputData : outputData) {
                out.write(anOutputData);
                out.newLine();
            }
        } finally {
            if(out != null) {
                out.close();
            }
        }
    }

    public static void main (String [] argv) throws IOException {

        loadInputData(argv[0]);

        Qualification2012C QC = new Qualification2012C();
        QC.solve();

        saveOutputData(argv[1]);
    }
}
