ref

import java.util.Scanner;
public class DevisibleByThree{
public static void main (String[] args){
  Scanner sc =new Scanner(System.in);
  int num =Integer.parseInt(sc.nextLine());
  int sum=0;
for(int i =0;i<=num*2;i++){

  if(i % 2 !=0){
    sum =sum +i;
    System.out.println(i);
  }

  }
  System.out.println("Sum: " +sum);
 }
}