using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
namespace TimespanTest
{
    class Program
    {
        static void Main(string[] args)
        {
            DateTime A = DateTime.Now;
            System.Threading.Thread.Sleep(100);
 
            TimeSpan B = DateTime.Now.Subtract(A);
            System.Threading.Thread.Sleep(1000);
            TimeSpan C = DateTime.Now.Subtract(A);
 
            TimeSpan D = C.Subtract(B);
 
            Console.WriteLine("{0}", D.ToString());
 
            return ;
        }
    }
}
 

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