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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;
public 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 num = a; num <= b; num++) {
      if (isPalindromicNumbers(num)) count++;
    }
    System.out.println(count);
  }
  public static boolean isPalindromicNumbers(int num) {
    String strNum = Integer.toString(num);
    for (int i = 0; i < strNum.length() / 2; i++) {
      if (strNum.charAt(i) != strNum.charAt(strNum.length() - i - 1)) return false;
    }
    return true;
  }
}