using System;

public class Test
{
	public static void Main()
	{
		DateTime a = DateTime.Parse("2020/5/30 12:00:00 AM");
		DateTime b = DateTime.Parse("2020/5/30 08:30:00 AM");
		DateTime c = DateTime.Parse("2020/5/30 12:00:00 PM");
		
		int result = DateTime.Compare(a, b); 
		
		Console.WriteLine(a);
		Console.WriteLine(b);
		Console.WriteLine(c);
		Console.WriteLine(result);
		result = DateTime.Compare(c, b); 
		Console.WriteLine(result);
	}
}