using System;

public class Test
{
	public static void Main()
	{
		Console.WriteLine(Math.Round(5.1, MidpointRounding.AwayFromZero));
        Console.WriteLine(Math.Round(5.5, MidpointRounding.AwayFromZero));
        Console.WriteLine(Math.Round(5.9, MidpointRounding.AwayFromZero));
	}
}