using System;

​

public class Program

{

    public static void Main()

    {

        for (int i = 1; i <= 5; i++)

        {

            Console.WriteLine(i);

        }

​

        Console.WriteLine("\nCurly braces are optional if the body of the loop contains only one statement.\n");

        for (int j = 1; j <= 5; j++)

            Console.WriteLine(j);

    }

}