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 C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] a = Console.ReadLine().Split();
            int y = int.Parse(a[0]);
            int z = int.Parse(a[1]);
            int e = 0;
            for (int i = y; i <= z; i++)
            {
                int c = i / 1000;
                int d = i - ((i / 100) * 100);
                if (c == d || i / 1000 == (i - ((i / 10000) * 10000)) && i / 10000 == (i - ((i / 1000) * 1000)))
                {
                    e++;
                }
            }
            Console.WriteLine(e);
        }
    }
}