Conditionals and Loops:Sum of Even Numbers till N

import java.util.Scanner;
public class Solution {


	public static void main(String[] args) {
		
		Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        int i=1;
        int sum=0;
        while(i<=n)
        {
            if(i%2==0)
            {
             sum=sum+i;   
            }
            
                i=i+1;
            
        }
        System.out.println(sum);
		
	}

}