/*
 * 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;
    }
}

import java.io.*;
import java.util.Scanner;
 
public class functions {
	int solve(String A, String B){

		int result = 0;

		int n = A.length();
		int a = Integer.parseInt(A);
		int b = Integer.parseInt(B);
		int i = 0, j = 0, k = 0, index = 0;
		String temp_a = A;
		String temp2 = "";
		int[] array = new int[8];
		for(i = 0; i<8;i++) array[i] = -1;
		
		i = 0;
		int jj = 0,kk = 0;
		while(Integer.parseInt(A) < b-1){
			
			for( index = 0; index <= n-2; index++){
				temp2 = "";
				kk = 0;
				for(j = index; j >= 0; j--){
					temp2 = temp2 + A.charAt(n-1-j);
				}
				for(k = 0; k < n-index-1; k++){
					temp2 = temp2 + A.charAt(k);
				}
				
				int c = Integer.parseInt(temp2);
				if ( c <= b && c > Integer.parseInt(A)) {
					for(jj = 0; jj < 8; jj++){
						if(array[jj] == c){
							break;
						}
					}
					if(jj == 8){
					result = result + 1;
					array[kk++] = c;
					}
					System.out.println("("+A+","+temp2+")");
				}

			}
			A = Integer.toString(Integer.parseInt(A)+1);
			i++;
		}
		
		return result;
	}
}
