IF STATEMENT NUMBERS WRITTEN WITH LETTERS

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _7._4_Write_numbers_with_letters
{
    class Program
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());
            string one = "one";
            string two = "two";
            string three = "three";
            string four = "four";
            string five = "five";
            string six = "six";
            string seven = "seven";
            string eight = "eight";
            string nine = "nine";
            string ten = "ten";
            if (num == 1)
            {
                Console.WriteLine(one);
            }
             else if (num == 2)
            {
                Console.WriteLine(two);
            }
            else if (num == 3)
            {
                Console.WriteLine(three);
            }
            else if (num == 4)
            {
                Console.WriteLine(four);
            }
            else if (num == 5)
            {
                Console.WriteLine(five);
            }
            else if (num == 6)
            {
                Console.WriteLine(six);
            }
            else if (num == 7)
            {
                Console.WriteLine(seven);
            }
            else if (num == 8)
            {
                Console.WriteLine(eight);
            }
            else if (num == 9)
            {
                Console.WriteLine(nine);
            }
            else if (num == 10)
            {
                Console.WriteLine(ten);
            }
            else
            {
                Console.WriteLine("Number too big");
            }


        }

    }
}