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 Scala (2.11.7) (judge verdict: Runtime Error)

object Main {
  def main(args: Array[String]): Unit = {

    val A: Int = io.StdIn.readLine().toInt
    val B: Int = io.StdIn.readLine().toInt

    var sum: Int = 0

    for ( i: Int <- A to B ) {
      var n: String = i.toString
      if ( n(0) == n(4) && n(1) == n(3))
        sum += 1
    }

    print(sum)

  }
  
}