/*
 * 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;
    }
}

package in.co.google.jam;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Recycled {

	public Recycled() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(
				new FileInputStream("C:/C-small.in.txt")));
		int numTests = Integer.parseInt(br.readLine());
		for (int i = 0; i < numTests; i++) {
			int result = 0;
			String s = br.readLine();
			String[] numbers = s.split(" ");
			int A = Integer.parseInt(numbers[0]);
			int B = Integer.parseInt(numbers[1]);
			if (A < 10 && B < 10) {
				result = 0;
			} else {
				List<Integer> allNumbers = new ArrayList<Integer>();
				for (int x = A; x <= B; x++) {
					allNumbers.add(x);
				}
				int middle = allNumbers.size() / 2;
				int base = 0;
				int t = A;
				int tester = 1;
				while (t >= 10) {
					t = t / 10;
					base++;
					tester *= 10;
				}

				for (int c = 0; c < allNumbers.size() - 10; c++) {
					for (int d = c + 9; d < allNumbers.size(); d++) {
						int numToTest = allNumbers.get(d);
						for (int b = 0; b < base; b++) {
							numToTest = recycle(numToTest, tester);
							if (allNumbers.get(c) == numToTest) {
								result++;
								break;
							}
						}
					}
				}

			}
			System.out.println("Case #" + (i + 1) + ": " + result);
		}

	}

	private int recycle(int num, int base) {
		int ret = num;
		int t = num;
		ret = ((t % base) * 10) + (t / base);
		return ret;
	}

	public static void main(String[] args) {
		try {
			new Recycled();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
