/*
 * 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 gcj_qr_c;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;

/**
 *
 * @author amahdy
 */
public class GCJ_QR_C {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws FileNotFoundException, IOException {
        new GCJ_QR_C().start();
    }
    
    private void start() throws FileNotFoundException, IOException {

        Scanner in = new Scanner(
                new FileReader("/home/amahdy/c-small.in"));
        int x = in.nextInt();
        in.nextLine();
        
        for (int i = 0; i < x; ) {
            
            int A = in.nextInt();
            int B = in.nextInt();
            int val = 0;
            for(int j=A; j<B; j++) {
                
                char[] zz = (j + "").toCharArray();
                int m = zz.length-1;
                for(int k=0; k<m; k++) {
                    char t = zz[m];
                    for(int n=m; n>0;) {
                        zz[n]=zz[--n];
                    }
                    zz[0] = t;
                    if(t=='0') {
                        continue;
                    }else {
                        int f = Integer.parseInt(String.valueOf(zz));
                        if(f > j && f <= B) {
                            val++;
                        }
                    }
                }
            }
            System.out.println("Case #" + ++i + ": " + val);
        }
    }
}
