static void Main(string[] args)
{
FourOperations fourOperations = new FourOperations();
fourOperations.Sum(5, 6);
fourOperations.Sum(15, 7);
}
static void Main(string[] args)
{
FourOperations fourOperations = new FourOperations();
fourOperations.Sum(9, 10);
}
static void Main(string[] args)
{
FourOperations fourOperations = new FourOperations();
Console.WriteLine("Result: " + fourOperations.Sum(5, 7));
}