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;

namespace ABC090
{
    class B
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split();
            int A = int.Parse(input[0]);
            int B = int.Parse(input[1]);

            int count = 0;
            string s;

            for (int i = A; i <= B; i++)
            {
                s = i.ToString();

                if (s[0] == s[s.Length - 1] && s[1] == s[s.Length - 2]) { count++; }
            }
            Console.WriteLine(count);
        }
    }
}