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;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public abstract class Task {
	
	private String inputFileName;
	private BufferedReader in;
	private PrintWriter out;

	public Task(String[] args) {
		inputFileName = args[0];
	}
	
	public void execute() throws IOException {
		File f = new File(inputFileName);   
        in = new BufferedReader(new FileReader(f));
        
		catchInputData();
		
		in.close();
		
		processInputData();
		
		f = new File(inputFileName.substring(0, inputFileName.length() - 2) + "out");
		f.createNewFile();
		out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
		
		generateOutputFile();
		
		out.flush();
		out.close();
	}

	protected abstract void generateOutputFile() throws IOException;

	protected abstract void processInputData();

	protected abstract void catchInputData() throws IOException;

	protected String readLine() throws IOException {
		return in.readLine();
	}

	protected void writeLine(String line) throws IOException {
		out.println(line);
	}

}
