// sum up 1, 2, 3, .. N (input)

import java.util.Scanner;
class ForLoop3
{
	public static void main(String[] args)
	{
			Scanner input = new Scanner(System.in);
			int count;
			int sum = 0;
			int N = input.nextInt();

			for (count=1; count<=N; count=count+1 )
			{
					System.out.println(count);
					sum = sum + count;
			}
			System.out.println("count = " + count);
			System.out.println("sum = " + sum);
			System.out.println("avg = " + sum/(count-1.));
	}
}