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.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        int[] c = new int[100000];
        for(int i=1;i<=9;i++)
        {
            for(int j=0;j<=9;j++)
            {
                for(int k=0;k<=9;k++)
                {
                    c[i*10000+j*1000+k*100+j*10+i]=1;
                }
            }
        }
        int ans = 0;
        for(int i=a;i<=b;i++)
        {
            ans += c[i];
        }
        System.out.println(ans);
    }    
}