static void Main(string[] args)
{
FourOperations fourOperations = new FourOperations();
fourOperations.Topla(5, 6);
fourOperations.Topla(6, 9);
}
static void Main(string[] args)
{
FourOperations dortislem = new FourOperations();
dortislem.Topla(5, 6);
dortislem.Topla(6, 9);
}