/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package recyclednumbers;

import java.util.HashSet;

/**
 *
 * @author vandit
 */
public class RecycleNumbers {

    private HashSet<String> numbers = new HashSet<String>();
    private HashSet<String> initialTempNumbers = new HashSet<String>();
    private HashSet<String> finalTempNumbers = new HashSet<String>();

    HashSet<Pair> numberPairs = new HashSet<Pair>();


    private void findRecycledNumbers(int start, int end, int places) {


        for (int i = start; i <= end; i++) {
            String initialNumber = Integer.toString(i);
            //if (!(numbers.contains(initialNumber) || finalTempNumbers.contains(initialNumber))) {

                StringBuffer tempNumber = new StringBuffer(initialNumber);
                int len = tempNumber.length();
                int startIndexToMove = len - places;
                String tempString = tempNumber.substring(startIndexToMove);
                if ((places == 1 && tempString.equals("0")) || tempString.charAt(0) == '0') {
                    continue;
                }
                tempNumber.delete(startIndexToMove, len);
                String finalTempNumber = tempString + tempNumber.toString();

                if (! (finalTempNumber.equals(initialNumber) || Integer.parseInt(finalTempNumber) > end || Integer.parseInt(finalTempNumber) < Integer.parseInt(initialNumber))) {
                    numbers.add(initialNumber);
                    finalTempNumbers.add(finalTempNumber);
                    Pair pair = new Pair(finalTempNumber,initialNumber);
                    numberPairs.add(pair);
                }
            }

        

    }

    public HashSet<Pair> findAllRecycledNumbers(int start, int end) {
        int length = Integer.toString(start).length();
        for (int i = 1; i < length; i++) {
            findRecycledNumbers(start, end, i);
        }
        return numberPairs;
    }
}

import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.Scanner;
import java.util.Locale;

public class NumberPairs {
	public static void main(String[] args) throws IOException {
		Scanner s = null;

		try {
			s = new Scanner(new BufferedReader(new FileReader("NumberPairs.in")));

			int N = s.nextInt();

			for (int i = 1; i <= N; i++) {
				int a = s.nextInt(), b = s.nextInt();
				System.out.println("Case #" + i + ": " + calculate(a, b));
			}
		} finally {
			if (s != null) {
				s.close();
			}
		}
	}

	static int calculate(int a, int b) {
		int result = 0;
		for (int i = a; i <= b; i++)
			for (int j = i; j <= b; j++)
				if (isPair(i,j)) result++;

		return result;
	}

	static boolean isPair(int x, int y) {
		if (x == y) return false;

		byte[] p1 = ("" + x).getBytes(), p2 = ("" + y).getBytes();
		int size = p1.length;
		
		for (int start = 0; start < size; start++) {
			for (int offset = 0; offset < size; offset++) {
				if (p1[offset] != p2[(start + offset) % size])
					break;

				if (offset == size - 1) {
					// System.out.println("Pair: " + x + " " + y);
					return true;
				}
			}
		}	

		return false;
	}
}
