import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
package googleCodeJam;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class RecycledNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		Map<Integer, Integer> map = new HashMap<Integer, Integer>();
		int i;
		
		//System.out.println("size of map: " + map.size());
		try{
			
			FileInputStream fstream = new FileInputStream("/Users/mkay/Documents/input_31.txt");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			
			int input1, input2;
			String str1, str2;
			int count = 0,j,m,n,num;
			  while ((strLine = br.readLine()) != null)
			  {
				  //System.out.println (strLine);
				  
				  if(count != 0 )
				  {
					  map = new HashMap<Integer, Integer>();
					  input1 = Integer.parseInt(strLine.split(" ")[0]);
					  input2 = Integer.parseInt(strLine.split(" ")[1]);
					  num=0;
					  ArrayList<Integer> arr;
					  
					  for(i=input1;i<input2;i++)
					  {
						 if(i<=99){
							 j=i/10+(i%10)*10;
							 
							 if(j!=i && j>= input1 && j<= input2 && j <= 99 && j > i){
								 num++;
							 }
						 }else{
							 j=i/10+(i%10)*100;
							 //if(i==112)
								// System.out.println("first one : " + j);
							 if(j>= input1 && j<= input2 && j!=i && j >= 100 && j>i){
								 if(i<j)
								 {
									 n=i;m=j;
								 }
								 else{
									 n=j;m=i;
								 }
								 
								 if(!map.containsKey(n)||(map.containsKey(n) && map.get(n) != m)){
									 map.put(n, m);	
									 num++;
									 //System.out.println(n + " : " + m);
								 }
							 }
							 j=j/10+(j%10)*100;
							 //if(i==112)
								// System.out.println("second one : " + j);
							 if(j!=i && j>= input1 && j<= input2 && j>= 100 && j > i){
								 if(i<j)
								 {
									 n=i;m=j;
								 }
								 else{
									 n=j;m=i;
								 }
								 if(!map.containsKey(n)||(map.containsKey(n) && map.get(n) != m)){
									 map.put(n, m);	
									 num++;
									 //System.out.println(n + " : " + m);
								 }
							 }
						 }
					  }
					  //for(Integer k: map.keySet())
						//  System.out.println(k + " : " + map.get(k));
					  //System.out.println("Case #"+ count + ": " + map.size() + " input: " + input1 + " : " + input2 + " num " + num);
					  System.out.println("Case #"+ count + ": " + num);
				  }
				  count++;
				  
			  }			  
			  in.close();
			}catch (IOException e)
		    {
				System.err.println("Error: " + e.getMessage());
		    }		
	}

}