Problem:
Score : 200 points

Problem Statement

Find the number of palindromic numbers among the integers between A and B (inclusive).
Here, a palindromic number is a positive integer whose string representation in base 10 (without leading zeros) reads the same forward and backward.

Constraints

10000 \leq A \leq B \leq 99999

All input values are integers.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the number of palindromic numbers among the integers between A and B (inclusive).

Sample Input 1

11009 11332

Sample Output 1

4

There are four integers that satisfy the conditions: 11011, 11111, 11211 and 11311.

Sample Input 2

31415 92653

Sample Output 2

612

Solution in Java7 (OpenJDK 1.7.0) (judge verdict: Wrong Answer)

import java.util.*;

public class Main {
    public static void main(String[] args) {
    	Scanner sc = new Scanner(System.in);
    	int a = Integer.parseInt(sc.next());
    	int b = Integer.parseInt(sc.next());

    	int ans = 0;

    	for (int i=a; i<=b; i++){
    		String string_i = String.valueOf(i);
    		StringBuffer sb = new StringBuffer(string_i);
    		if (string_i.equals(sb.reverse())){
    			ans += 1;
    		}
    	}

    	System.out.println(ans);
    }
}