public static void Main()
Console.WriteLine("Please insert a whole number");
Console.WriteLine("The sum is: " + sum);
int product = num1 * num2;
Console.WriteLine("The product is: " + product);
int quotient = num1 / num2;
Console.WriteLine("The quotient is: " + quotient);
int difference = num1 - num2;
Console.WriteLine("The difference is: " + difference);