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 codejam.common;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author chenling
 */
public class FileUtil {

    public static List<String> readLines(String fileName) {
        List<String> result = new ArrayList<String>();
        FileReader in = null;
        try {
            in = new FileReader(fileName);
            BufferedReader reader = new BufferedReader(in);
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.trim().length() > 0) {
                    result.add(line);
                }
            }
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return result;
    }

    public static void writeLines(String fileName, List<String> lines) {
        FileWriter writer = null;
        try {
            writer = new FileWriter(fileName);
            PrintWriter printWriter = new PrintWriter(writer);
            for (String line : lines) {
                printWriter.println(line);
            }
        } catch (IOException ex) {
            Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (writer != null) {
                try {
                    writer.close();
                } catch (IOException ex) {
                    Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
}
