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: Accepted)

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

namespace _20180502_pra
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] a = Console.ReadLine().Split(' ');
            int b = int.Parse(a[0]);
            int c = int.Parse(a[1]);

            int count = 0;

            for(int i = b; i <= c; i++)
            {
                string d = Convert.ToString(i);
                char[] n = d.ToCharArray();
                Array.Reverse(n);

                string m = new string(n);

               
                if (d == m)
                {
                    count++;
                }
               
            }

            Console.WriteLine(count);

            

        }
    }
}