6.1Loops_PrintNumbersFrom1toN

using System;

class AllNumbersFrom1ToN
{
    static void Main ()
    {
        Console.Write("Please, enter a whole positive number for N = ");
        string numberStr = Console.ReadLine();
        int numberN = int.Parse(numberStr);
        if (numberN < 1)
        {
            Console.WriteLine("Error - Invalid Number !!!");
        }
        else
        {
            Console.WriteLine("The all numbers from 1 to that number N are:");
            for (int i = 1; i <= numberN; i++)
            {
                Console.Write("{0} ", i);
            }
        }
        Console.ReadLine();
    }
}