using System;

​

public class Program

{

    public static void Main()

    {

        Console.Write("Enter a number: ");

        int no = Convert.ToInt32(Console.ReadLine());

        var result = lastDigit(no);

        Console.WriteLine(result);

    }

​

    public static int lastDigit(int number)

    {

        return number % 10;

    }

}