/*
 * 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.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.StringTokenizer;


public class RecycledNumbers {
	
	public static ArrayList<Integer> palindroms = new ArrayList<Integer>();

	public static void main(String[] args) throws FileNotFoundException, IOException {
		File inFile = new File("/Users/johannesvietze/Desktop/C-small-attempt0.in");
	    
		
	    //read
	    StringTokenizer tok = new StringTokenizer(getContents(inFile),"\n");
	    tok.nextToken(); //delete first token
	    
	    String result = "";
	    int counter = 1;
	    
	    //compute
	    while(tok.hasMoreTokens()){
	    	String in = tok.nextToken(); //next line
	    	String[] current = in.split(" ");
	    	int a = Integer.parseInt(current[0]);
	    	int b = Integer.parseInt(current[1]);
	    	double res = 0;
	    	
	    	palindroms.clear();
	    	for(int n = a; n <= b; n++){
	    		if(n >= 10){
	    			res += getNumberOfRecycledNumbers(a, b, n);
	    		}
	    	}
	    	
	    	DecimalFormat df = new DecimalFormat("#");
	    	result += "Case #" + counter++ + ": ";
	    	result += df.format(res);
	    	result += "\n";
	    }
	    
	    //System.out.println(result);
	    
		//write
	    File outFile = new File("/Users/johannesvietze/Desktop/C-small-attempt0.out");
	    setContents(outFile, result);
		
	}
	
	public static double getNumberOfRecycledNumbers(int min, int max, int in){
		double result = 0;
		
		String currentS = Integer.toString(in);
		int length = currentS.length();
		
		for (int i = 0; i < length; i++) {
			
			currentS = currentS.charAt(length-1) + currentS.substring(0, length-1);
			
			if(Integer.parseInt(currentS) <= max && Integer.parseInt(currentS) > min && in < Integer.parseInt(currentS)){
				if(isPalindrom(String.valueOf(in)  + currentS)){
					if(!palindroms.contains(Integer.parseInt(String.valueOf(in)  + currentS))){
						palindroms.add(Integer.parseInt(String.valueOf(in)  + currentS));
						result++;
					}
				}else{
					result++;
				}
			}
		}
		
		return result;
	}
	
	public static boolean isPalindrom(String s){
		return s.equals(new StringBuffer(s).reverse().toString());
	}
	
	public static String getContents(File aFile) {
	    StringBuilder contents = new StringBuilder();
	    try {
	      BufferedReader input =  new BufferedReader(new FileReader(aFile));
	      try {
	        String line = null;
	        while (( line = input.readLine()) != null){
	          contents.append(line);
	          contents.append(System.getProperty("line.separator"));
	        }
	      }
	      finally {
	        input.close();
	      }
	    }
	    catch (IOException ex){
	      ex.printStackTrace();
	    }
	    
	    return contents.toString();
	  }

	public static void setContents(File aFile, String aContents) throws FileNotFoundException, IOException {
	    Writer output = new BufferedWriter(new FileWriter(aFile));
	    try {
	      output.write( aContents );
	    }
	    finally {
	      output.close();
	    }
	 }
}
