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 recycledNumbers;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;

public class InputFile 
{
	public ArrayList<String> readFile() throws Exception
	{
		File file = new File("C:\\Users\\Nikhil\\Desktop\\googleCodeJam\\C-small-attempt0.in");
		
		BufferedReader bufferedReader = new BufferedReader(new FileReader(file));

		ArrayList<String> list = new ArrayList<String>();
		
		String line = null;
		
		line = bufferedReader.readLine();
		
		 while ((line = bufferedReader.readLine()) != null)
		 {
			 list.add(line);
		 }
		
		
		return list;
	}

}
