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);
            //入力
            int n1 = Integer.parseInt(sc.next());
            int n2 = Integer.parseInt(sc.next());
            int counter = 0;
            
            for(int i=n1; i<=n2; i++){
            	if(String.valueOf(i).substring(0,1).equals(String.valueOf(i).substring(4,5)) && String.valueOf(i).substring(1,2).equals(String.valueOf(i).substring(3,4))){
            		counter++;
            	}
            }
            
            //出力
            System.out.println(counter);
            sc.close();
        }
    }