/*
 * 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 qualification;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;

public class ProblemC {
	
	public static int solve(int A, int B){
		
		int count = 0;
		
		for (int i = A; i <= B; i++){
			String number = String.valueOf(i);
			String s = number + number;
			for (int j = 1; j < number.length(); j++){
				int newnumber = Integer.parseInt(s.substring(j, j + number.length()));
				if ((newnumber > i) && (newnumber <= B))
					count++;
			}
		}
		
		return count;
	}
	
	public static void main(String[] args){
		try{
			BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
			BufferedWriter bw = new BufferedWriter(new FileWriter("outputC"));
			String line = br.readLine();
			int ans = 0;
			int num = Integer.parseInt(line);
			
			for (int i = 0; i < num; i++){
				line = br.readLine();
				String[] segs = line.split("\\s+");
				ans = solve(Integer.parseInt(segs[0]), Integer.parseInt(segs[1]));
				bw.write("Case #" + (i+1) + ": " + ans + "\n");
			}
			
			br.close();
			bw.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}

}
