/*
 * 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 qualC;

import java.util.*;

public class RecycledNumbers {
  
  private static int cases;
  
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    if (input.hasNextInt()) {
      cases = input.nextInt();
    }
    
    for (int i = 0; i < cases; i++) {
      System.out.println("Case #" + (i+1) + ": " + findRecycled(input));
    }
  }
  
  public static int findRecycled(Scanner input) {
    int startingPoint = 0;
    int endingPoint = 0;
    int counter = 0;
    
    if (input.hasNextInt()) {
      startingPoint = input.nextInt();
    }
    
    if (input.hasNextInt()) {
      endingPoint = input.nextInt();
    }
    
   
    //for each item from start->end..
    for (Integer i = startingPoint; i < endingPoint; i++) {
      
      //cast that item to a string..
      String value = i.toString();
      ArrayList<Integer> thisItem = new ArrayList<Integer>();
      //for each character in the string..
      for (int z = 0; z < value.length(); z++) {
        
        //shuffle the characters along one
        String rotate = value.substring(z);
        rotate += value.substring(0, z);
        
        //cast to an int
        int shuffledInt = Integer.parseInt(rotate);
        
        //make sure it is within the boundaries..
        if (shuffledInt <= endingPoint && shuffledInt >= startingPoint) {
          
          //if it is greater than the original then it is a duplicate
          if (Integer.parseInt(value) < shuffledInt) {
            //make sure if we've looked at this item before that it's not a duplicate..
            if (!thisItem.contains(shuffledInt)) {
              counter++;
              thisItem.add(shuffledInt);
            }
          }
        }
       
      }
    }
    
    return counter;
  }
}