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 Java (OpenJDK 11.0.6) (judge verdict: Accepted)

import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int count = 0;
    for (int i = a; i <= b; i++) {
      int[] array = new int[5];
      array[0] = i % 10;
      array[1] = i / 10 % 10;
      array[2] = i / 100 % 10;
      array[3] = i / 1000 % 10;
      array[4] = i / 10000 % 10;
      if (array[0] == array[4] && array[1] == array[3]) {
        count++;
      }
    }
    System.out.println(count);
  }
}