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());
	}

}

package com.google.codejam.utils.files;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;


public class ManejoArchivos {
    private static String path = "D:\\Proyectos\\Google\\files\\2012\\";
    
    public static int[][] readFile(String name) throws FileNotFoundException, 
                                                        IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(path + name)));
        
        int arr[][] = new int[Integer.parseInt(br.readLine())][2];
        for(int i=0;i<arr.length;i++) {
            String str[] = br.readLine().split(" ");
            arr[i][0] = Integer.parseInt(str[0]);
            arr[i][1] = Integer.parseInt(str[1]);
        }
        
        return arr;
    }
    
    public static void writeFile(String name, StringBuffer sb) throws FileNotFoundException {
        PrintWriter out = new PrintWriter(new FileOutputStream(path + name));
        out.print(sb.toString());
        out.flush();
        out.close();
    }
    
    
    public static int LOG = 0;
    private static BufferedReader in = null;
    public static void initInput(String name) throws FileNotFoundException {
        in = new BufferedReader(new InputStreamReader(new FileInputStream(path + name + ".in")));
    }
    public static void closeInput() throws IOException {
        in.close();
    }
    
    private static void logRead(String str) {
        if( LOG == 1 ) {
            System.out.println(str);
        }
    }
    public static String getString() throws IOException {
        String str = in.readLine();
        logRead(str);
        
        return str;
    }    
    public static String[] getStrings() throws IOException {
        String str = in.readLine();
        logRead(str);
        
        return str.split(" ");
    }
    public static int getInt() throws IOException {
        String str = in.readLine();
        logRead(str);
        
        return Integer.parseInt(str);
    }
    public static int[] getInts() throws IOException {
        String str = in.readLine();
        logRead(str);
        
        String arr[] = str.split(" ");
        int ints[] = new int[arr.length];
        for(int i=0;i<arr.length;i++) {
            ints[i] = Integer.parseInt(arr[i]);
        }
        return ints;
    }
    public static long[] getLongs() throws IOException {
        String str = in.readLine();
        logRead(str);
        
        String arr[] = str.split(" ");
        long longs[] = new long[arr.length];
        for(int i=0;i<arr.length;i++) {
            longs[i] = Long.parseLong(arr[i]);
        }
        return longs;
    }
    
    public static int TIPO_WRITE = 0;
    private static PrintWriter out = null;
    private static String strName = null;
    public static void initOutput(String name) throws FileNotFoundException {
        initOutput(name, false);
    }
    public static void initOutput(String name, boolean append) throws FileNotFoundException {
        strName = name;
        out = new PrintWriter(new FileOutputStream(path + name + ".out", append));
    }
    public static void closeOutput() {
        try {
            out.flush();
            out.close();
        } catch( Exception e ) {
            e.printStackTrace();
        }
    }

    private static void openWrite() throws FileNotFoundException {
        if( TIPO_WRITE == 1 ) {
            initOutput(strName, true);
        }
    }
    private static void closeWrite() {
        if( TIPO_WRITE == 1 ) {
            closeOutput();
        }
    }
    public static void writeCase(int i, String str) throws FileNotFoundException {
        openWrite();
        
        out.print("Case #");
        out.print(i);
        out.print(": ");
        out.print(str);
        out.print("\n");
        
        closeWrite();
    }
}
