实在不知道咋优化辽

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
	     Scanner scanner = new Scanner(System.in);
          int a = scanner.nextInt();
              for(int i = 1;i <= a;i++) {
           	   long b = ((i+1)*i/2);
           	   System.out.println(b);
           	   scanner.close();
}
}
}```