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.Scanner;

public class Main{

    public static void main(String[] args) {
        
        Scanner scan = new Scanner(System.in);
        
        int a = scan.nextInt();
        int b = scan.nextInt();
        int cnt = 0;

        for(int i=a; i<=b; i++){
            String sa = String.valueOf(i);
            if(sa.substring(0, 1).equals(sa.substring(4, 5)) 
                && sa.substring(1, 2).equals(sa.substring(3, 4))){
                    cnt++;
                }
        }

        System.out.println(cnt);

        scan.close();
    
    }

}