蒻蒻求本题Java 解法

import java.util.Scanner;

public class Main{
    public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       int a = (int) sc.nextInt();
        System.out.println(a);
        System.out.println(a + a);
        System.out.println(a + a + a);
    }
}