static void Main(string[] args)
{
/* Console.OutputEncoding = Encoding.UTF8;
* Console.InputEncoding = Encoding.UTF8;
*
* SinhVien sv1 = new SinhVien();
* SinhVien sv2 = new SinhVien();
* sv1.NhapThongTinSV();
* sv2.NhapThongTinSV(); */
SoNguyen so1 = new SoNguyen();
Console.Write(so1.Xuat());
//SoNguyen so2 = new SoNguyen();
//SoNguyen so3 = new SoNguyen();
//SoNguyen K = new SoNguyen();
//so1.Nhap();
// so2.Nhap();
// so3.Nhap();
// int T = so1.Cong(7);
// Console.Write(T);
/*SoNguyen sn1 = new SoNguyen();
* sn1.Nhap();
* K = so1.Cong(sn1);
* K.Xuat();
* Console.ReadKey();*/
}
public SoNguyen Cong(SoNguyen sn1)
{
SoNguyen tam = new SoNguyen();
tam.x = this.x + sn1.x;
return(tam);
}