Methods-void

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

namespace ITC1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Write("Enter number: ");
            int n = int.Parse(Console.ReadLine());
            Console.Write($"Last digit name of {n} is: ");
            LastDigitName(n);
            PresentMe("Ivan", 20);
        }

        static void LastDigitName(int number)
        {
            //int lastDigit = number % 10;
            switch (number % 10)
            {
                case 0: Console.WriteLine("zero"); break;
                case 1: Console.WriteLine("one"); break;
                case 2: Console.WriteLine("two"); break;
                case 3: Console.WriteLine("three"); break;
                case 4: Console.WriteLine("four"); break;
                case 5: Console.WriteLine("five"); break;
                case 6: Console.WriteLine("six"); break;
                case 7: Console.WriteLine("seven"); break;
                case 8: Console.WriteLine("eight"); break;
                case 9: Console.WriteLine("nine"); break;
            }
        }

        static void PresentMe(string name, int age)
        {
            Console.WriteLine($"My name is {name}!");
            Console.WriteLine($"I am {age} years old!");
            Console.WriteLine("Bye bye");
        }
    }
}