using System;

public class Program

{

    public static void Main()

    {

        var Increase = 13;

        var original = 12.523;

        var nearest = 10;

        Math.Round(original, MidpointRounding.AwayFromZero );

        Console.WriteLine("Round Up = "+ Math.Ceiling(original));

        Console.WriteLine("Round Down = "+ Math.Floor(original));

        Console.WriteLine("14 Round To Nearest 10 = " + (Math.Round(14.0/10) * nearest));

        Console.WriteLine("15 Round To Nearest 10 = " + (Math.Round(15.0/10) * nearest));

        Console.WriteLine("17 Round To Nearest 10 = " + (Math.Round(16.0/10) * nearest));

    }

}