/*
 * 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 gcj2012;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Scanner;

public class RecycledNumbersClean {
	public static void main(String[] args) throws FileNotFoundException {

		Scanner in = new Scanner(
				new File(
						"/Users/olvitole/Dropbox/workspace/Googe Code/src/gcj2012/files/C-small-attempt1.in"));
		int t = Integer.parseInt(in.nextLine());
		OutputStream outStr = new FileOutputStream(
				"/Users/olvitole/Dropbox/workspace/Googe Code/src/gcj2012/files/C1s-output.txt");
		PrintStream printOut = new PrintStream(outStr);
		for (int zz = 1; zz <= t; zz++) {
			ArrayList<String> record = new ArrayList<String>();
			String input = in.nextLine().trim();
			String parts[] = input.split(" ");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			int count = 0;
			if (!(B <= 9)) {
				int iFliped = 0;
				String iFlipedString = "";
				String iString = "";

				for (int i = A; i <= B; i++) {
					iString = i + "";
					int first = 0;
					int second = 0;
					for (int j = 1; j < iString.length(); j++) {
						System.out.println();
						first = (int) (i / (Math.pow(10, j)));
						second = (int) (i % (Math.pow(10, j)));
						iFlipedString = "" + second + "" + first;

						iFliped = Integer.parseInt(iFlipedString);
						if (iFliped <= B && iFliped > i
								&& !iString.equals(iFlipedString)
								&& !record.contains(iString + iFlipedString)) {
							count++;
							record.add(iString + iFlipedString);
						} 
					}
				}
			}
			String output = count + "";
			printOut.append("Case #" + zz + ": " + output + "\n");
		}

		System.setOut(printOut);
	}

}
