using System;
public class Program
{
public static void Main()
//LUCIANA MORALES
int num;
Console.WriteLine("Give me a number, please");
num = int.Parse(Console.ReadLine());
Console.WriteLine();
for (int i = 0; i <= num*2-1; i++)
Console.WriteLine(i+1);
Console.WriteLine("THE EXAM YOU ARE READING WAS ANSWERED BY LUCIANA");
}