using System;
using System.Linq;
using System.Collections.Generic;
public class Program
{
public static void Main()
decimal a=4.865m;
Console.WriteLine(a.ToString(("#,0.00")));
Console.WriteLine(Math.Round(a, 2));
Console.WriteLine(Math.Round(a, 2, MidpointRounding.AwayFromZero));
}