static void Main(string[] args)
{
int product = MyMath.Multiply(2, 2);
{ Console.WriteLine(product); }
int quotient = MyMath.Divide(10, 2);
{ Console.WriteLine(quotient); }
MyMath mathobj1 = new MyMath();
int sum = mathobj1.Add(1, 2);
{ Console.WriteLine(sum); }
MyMath mathobj2 = new MyMath();
int difference = mathobj2.subtract(1, 2);
{ Console.WriteLine(difference); }
}