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 mgg.utils;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;

public class CorrespondenceUtils {

	public static String getT9Correspondence(char c) {

		/** Generating code:
		for(int i = 0; i<=25; i++){
			System.out.println("case '"+((char)(i+((int)'a')))+"':");
			System.out.println("return \"\";");
		}
		 */
		switch (c){
		case 'a':	return "2";
		case 'b':	return "22";
		case 'c':	return "222";

		case 'd':	return "3";
		case 'e':	return "33";
		case 'f':	return "333";

		case 'g':	return "4";
		case 'h':	return "44";
		case 'i':	return "444";

		case 'j':	return "5";
		case 'k':	return "55";
		case 'l':	return "555";

		case 'm':	return "6";
		case 'n':	return "66";
		case 'o':	return "666";

		case 'p':	return "7";
		case 'q':	return "77";
		case 'r':	return "777";
		case 's':	return "7777";

		case 't':	return "8";
		case 'u':	return "88";
		case 'v':	return "888";

		case 'w':	return "9";
		case 'x':	return "99";
		case 'y':	return "999";
		case 'z':	return "9999";

		case ' ':	return "0";

		default:
			throw new RuntimeException("Not valid character: '" + c + "'");
		}
	}

	public static char getGooglereseCorrespondence(char c) {

		/** Generating code:
		String strG = "ejp mysljylc kd kxveddknmc re jsicpdrysi rbcpc ypc rtcsra dkh wyfrepkym veddknkmkrkcd de kr kd eoya kw aej tysr re ujdr lkgc jv";
		String strE = "our language is impossible to understand there are twenty six factorial possibilities so it is okay if you want to just give up";
		
		HashSet<String> set = new HashSet<String>();
		
		for (int i = 0; i< strE.length(); i++){
			
			set.add("case '" + strG.charAt(i) + "':\treturn '" + strE.charAt(i) + "';");
			//System.out.println("case '" + strG.charAt(i) + "':\treturn '" + strE.charAt(i) + "';");
		}
				
		ArrayList<String> list = new ArrayList<String>(set);
		
		Collections.sort(list);
		
		for(String s : list){
			System.out.println(s);
		}
		 **/
		switch (c){
		case 'a':	return 'y';
		case 'b':	return 'h';
		case 'c':	return 'e';
		case 'd':	return 's';
		case 'e':	return 'o';
		case 'f':	return 'c';
		case 'g':	return 'v';
		case 'h':	return 'x';
		case 'i':	return 'd';
		case 'j':	return 'u';
		case 'k':	return 'i';
		case 'l':	return 'g';
		case 'm':	return 'l';
		case 'n':	return 'b';
		case 'o':	return 'k';
		case 'p':	return 'r';
		case 'q':	return 'z';
		case 'r':	return 't';
		case 's':	return 'n';
		case 't':	return 'w';
		case 'u':	return 'j';
		case 'v':	return 'p';
		case 'w':	return 'f';
		case 'x':	return 'm';
		case 'y':	return 'a';
		case 'z':	return 'q';
		case ' ':	return ' ';

		default:
			throw new RuntimeException("Not valid character: '" + c + "'");
		}
	}

}
