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 com.google.codejam.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class CodeJamInputFile extends File {

	/**
	 * 
	 */
	private static final long serialVersionUID = 8294095294390757204L;
	private BufferedReader reader;
	private int cases;
	
	public CodeJamInputFile(String pathname) {
		super(pathname);
		
		try {
			this.setReader();
		} catch (FileNotFoundException e) {
		}
		try {
			this.setCases(Integer.valueOf(this.getReader().readLine()));
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	private void setReader() throws FileNotFoundException {
		reader = new BufferedReader(new FileReader(this));
		
	}

	public BufferedReader getReader() {
		return reader;
	}

	public void setCases(int cases) {
		this.cases = cases;
	}

	public int getCases() {
		return cases;
	}
	
	public void close() {
		try {
			reader.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public String getLine() {
		String line = "";
		try {
			line = reader.readLine();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return line;
	}

}
