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: Accepted)

import java.util.*;
import java.lang.*;
import java.io.*;

public class Main {
	public static boolean isPalindrome(int n) {
		String s = ""+n;

		String a = "";
		for (int i = s.length()-1; i>=0; i--) {
			a += s.charAt(i);
		}

		return s.equals(a);
	}

	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		//Scanner sc = new Scanner(new File("B.txt"));

		int a = sc.nextInt();
		int b = sc.nextInt();

		int count = 0;
		for (int i = a; i <= b; i++) {
			if (isPalindrome(i)) count++;
		}

		System.out.println(count);
	}
}