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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function Main(input) {
  input = input.split(' ');
  num = Number(input[0]);
  lastNum = Number(input[1]);
  count = 0;
  while(num <= lastNum){
    pal = String(num);
    if (pal[0] === pal[4] && pal[1] === pal[3]) {
      count++;
    }
    num++;
  }
  console.log(count);
}

Main(require('fs').readFileSync('/dev/stdin', 'utf8'))