using System;

public class Program

{

    //This program shows the ways to write a "while" loop.

    //eval = evaluated, inc = incremented, writ = written (writeline command)

    public static void Main()

    {

        int num = 0;

        while (num++ <= 5) {

            Console.WriteLine(num);

        }

        //Outputs 1-6: eval - inc - writ

        Console.WriteLine("---------------");

        num = 0;

        while (num <= 5) {

            Console.WriteLine(num);

            num += 1;

        }

        //Outputs 0-5: eval - writ - inc

        Console.WriteLine("---------------");

        num = 0;

        do {

            Console.WriteLine(num);

        } while (num++ <= 5);

        //Outputs 0-6: writ - eval - inc

        Console.WriteLine("---------------");

        num = 0;

        while (++num <= 5) {

            Console.WriteLine(num);

        }

        //Outputs 1-5: inc - eval - writ

    }

}