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 fixjava;

import java.util.ArrayList;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

import fixjava.ParallelWorkQueue.CallableFactory;



public class ParallelWorkQueueTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ArrayList<Integer> inputs = new ArrayList<Integer>();
		for (int i = 100; i < 120; i++)
			inputs.add(i);

		ParallelWorkQueue.CallableFactory<Integer, String> callableFactory = new CallableFactory<Integer, String>() {
			@Override
			public Callable<String> newInstance(final Integer input) {
				return new Callable<String>() {
					@Override
					public String call() throws Exception {
						Thread.sleep((int) (Math.random() * 4000));
						System.out.println("  Input: " + input);
						return "***" + (input + 1);
					}
				};
			}
		};

		try {
			for (Future<String> result : new ParallelWorkQueue<Integer, String>(4, inputs, callableFactory))
				System.out.println("Got : " + result.get());
		} catch (InterruptedException e) {
			e.printStackTrace();
		} catch (ExecutionException e) {
			e.printStackTrace();
		}
	}
}
