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.dagova.recycledNumbers;

import java.util.TreeSet;

public class RecycledNumbersSolver
{
	private static int solution;
	private static int aNumber;
	private static int bNumber;

	
	public static int solve(String line)
	{
		solution = 0;
		
		String[] splittedLine = line.split(" ");
		aNumber = Integer.parseInt(splittedLine[0]);
		bNumber = Integer.parseInt(splittedLine[1]);
		
		for(int number = aNumber; number < bNumber-1; number++)
		{
			solution += solveNumber(number);
		}
		return solution;
	}

	
	public static int solveNumber(int number)
	{
		//	con el treeset evita que un n de varias veces el mismo m. Antes usaba el contador recycledNumbers y por eso fallaba.
		TreeSet<Integer> ms = new TreeSet<Integer>();
//		int recycledNumbers = 0;
		String numberAsString = Integer.toString(number);
		int numberLength = numberAsString.length();
		
		for(int charIterator = 1; charIterator < numberLength; charIterator++)
		{
			if(numberAsString.charAt(charIterator) >= numberAsString.charAt(0))
			{
				int recycledNumber = generateRecycledNumber(numberAsString, charIterator);
				if(recycledNumber <= bNumber && recycledNumber > number)
				{
					ms.add(recycledNumber);
//					recycledNumbers++;
				}
			}	
		}
		
		return ms.size();
//		return recycledNumbers;
	}
	
	
	public static int generateRecycledNumber(String numberAsString, int charIterator)
	{
		String prefix = numberAsString.substring(0, charIterator);
		String sufix = numberAsString.substring(charIterator);
		
		return Integer.parseInt(sufix.concat(prefix));
	}
}
