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 Kotlin (1.0.0) (judge verdict: Accepted)

private fun readInts() = readLine()!!.split(" ").map { it.toInt() }.toList()

fun main(args: Array<String>) {
    val ab = readInts()

    println((ab[0]..ab[1]).map { it.toString() }.filter { it == it.reversed() }.size)
}