Class Vector - operations on vectors

Create a class named **Vector** that represents a vector on a plane with two coordinates: **x** and **y**.

Implement three constructors for this class:

- A default constructor that initializes the class fields to zero.

- A constructor that accepts two integer parameters, representing the vector's coordinates.

Implement the following methods:

- `void Input()`: This method reads two vector coordinates, x and y, from a single line of input, separated by a space.

- `void Out()`: This method outputs the vector coordinates, separated by a space, followed by a newline.

Overload the following operators:

- `=` (assignment),

- `+` (vector addition),

- `-` (vector subtraction),

- `+=` and `-=`,

- `*` (vector multiplication, representing the scalar product of vectors, which returns a number).

Submit only the class implementation. The solution will be evaluated for the programming languages C++ and C#.