static void Main(string[] args)
{
Dathuc a = new Dathuc();
Dathuc c = new Dathuc();
Dathuc b = new Dathuc();
a.NhapDaThuc();
//a.RutGon(a).XuatDathuc();
a.Sapxep();
a.RutGon();
a.XuatDathuc();
Console.ReadLine();
}
static void Main(string[] args)
{
Dathuc T1 = new Dathuc();
T1.NhapDaThuc();
T1.XuatDaThuc();
Dathuc T2 = new Dathuc();
T2.NhapDaThuc();
T2.XuatDaThuc();
Console.WriteLine("T1 + T2 = ");
Dathuc Tong = T1 + T2;
Tong.XuatDaThuc();
Console.WriteLine("T1 - T2 = ");
Dathuc Hieu = T1 - T2;
Hieu.XuatDaThuc();
Console.ReadLine();
}