/*
 * 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;
    }
}

package Round1;

/*
 ID: kevinle7
 LANG: JAVA
 TASK: recycled
 */
import java.io.*;
import java.util.*;

class recycled
{	
	public static int[] pow = {1,10,100,1000,10000,100000,1000000,10000000,100000000};
	public static void main(String[] args) throws IOException
	{
		BufferedReader f = new BufferedReader(new FileReader("recycled.in"));
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("recycled.out")));
		int t = Integer.parseInt(f.readLine());
		for (int i = 0 ; i < t; i++)
		{
			StringTokenizer st = new StringTokenizer(f.readLine());
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int d = (int) Math.log10(a);
			int count = 0;
			for (int n = a; n < b; n++)
			{
				HashSet<Integer> set = new HashSet<Integer>();
				set.add(n);
				int temp = n;
				temp = temp/10 + (temp%10)*pow[d];
				while (!set.contains(temp))
				{
					set.add(temp);
					if (temp > n && temp <= b)
						count++;
					temp = temp/10 + (temp%10)*pow[d];
				}
			}
			out.println("Case #" + (i+1) + ": "  + count);
		}
		out.close();
		System.exit(0);
	}
	
}