package it.simone.google.code.jam2012;

import java.util.HashSet;
import java.util.Set;

public class RecycledNumber implements GoogleCodeExercise {

	int a = 0;
	int b = 0;
	Set<Couple> distinctCouple = null;
	long maxTime = 0;

	private class Couple {
		int x = 0;
		int y = 0;

		public Couple(int x, int y) {
			this.x = x;
			this.y = y;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + getOuterType().hashCode();
			result = prime * result + x;
			result = prime * result + y;
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Couple other = (Couple) obj;
			if (!getOuterType().equals(other.getOuterType()))
				return false;
			if (x == other.x && y == other.y)
				return true;
			if (x == other.y && y == other.x)
				return true;
			return false;
		}

		private RecycledNumber getOuterType() {
			return RecycledNumber.this;
		}

	}

	@Override
	public String execute(String line) {
		int result = 0;

		String[] data = line.split(" ");
		a = Integer.parseInt(data[0]);
		b = Integer.parseInt(data[1]);
		initialize();

		int n = a;
		//
		while (n <= b) {
			result += analize(n);
			n++;
//			if (n % 1000 == 0)
//				System.out.println(n);
		}

		System.out.println(result);
		return "" + result;
	}

	@Override
	public void initialize() {
		distinctCouple = new HashSet<Couple>();
	}

	private int analize(int number) {
		String numString = "" + number;
		initialize();
		for (int i = 1; i < numString.length(); i++) {
			int m = shift(numString, i);
			if (a <= number && number < m && m <= b) {
				Couple couple=new Couple(number,m);
				if (!distinctCouple.contains(couple))
					distinctCouple.add(couple);
			}
		}
		return distinctCouple.size();
	}

	private int shift(String numString, int posx) {

		String result = null;
		result = "" + numString.substring(posx) + numString.substring(0, posx);

		return Integer.parseInt(result.toString());
	}

}

/*
 * Google Code Challenge Java
 * 
 * Code written for the Google Code Challenge by Greg Dougherty
 * Created: May 7, 2011
 * 
 * Copyright 2011 by Greg Dougherty
 */

package com.google.GregTD.CodeJam2012.Recycled;

import java.io.*;

/**
 * @author Greg Dougherty
 *
 */
public class Recycled
{
	
	private static final String	kInSuffix = ".in";
	private static final String	kOutSuffix = ".out";
	
	/**
	 * @param args
	 */
	public static void main (String[] args)
	{
		String	inName = args[0];
		int		nameLen = inName.indexOf (kInSuffix);
		String	outName = inName.substring (0, nameLen) + kOutSuffix;
		File	dataFile = new File (args[0]);
		File	resultFile = new File (outName);
		
		try
		{
			BufferedReader	dataReader = new BufferedReader (new FileReader (dataFile));
			BufferedWriter	dataWriter = new BufferedWriter (new FileWriter (resultFile));
			String			line = dataReader.readLine ();	// Get first line
			int				numCases = Integer.valueOf (line).intValue ();
			
			// Run each test case
			for (int i = 0; i < numCases; ++i)
			{
				// Get data
				line = dataReader.readLine ();
				
				String[]	entries = line.split (" ");
				int	minValue = new Integer (entries[0]).intValue ();
				int	maxValue = Integer.valueOf (entries[1]).intValue ();
				int	numPairs = 0;
				for (int j = minValue; j <= maxValue; ++j)
				{
					String	str = "" + j;
					int		strLen = str.length ();
					if (strLen < 2)
						continue;
					
					--strLen;
					for (int k = 0; k < strLen; ++k)
					{
						str = str.charAt (strLen) + str.substring (0, strLen);
						int	value = Integer.valueOf (str).intValue ();
						if ((value > j) && (value <= maxValue))
							++numPairs;
					}
				}
				
				dataWriter.write ("Case #" + (i + 1) + ": " + numPairs);
				dataWriter.newLine ();
				dataWriter.flush ();
			}
		}
		catch (IOException ioE)
		{
			ioE.printStackTrace ();
		}
	}
	
}
