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You have a class like this and an example of its usage:

```
class Vector
def initialize(x, y)
@x, @y = x, y
end
def *(value)
self.class.new(@x * value, @y * value)
end
def to_s
"#{@x}, #{@y}"
end
end
v = Vector.new(3, 5)
puts v
puts v * 3
```

Output:

```
3, 5
9, 15
```

You would like to make the `#*`

method commutative, so that the following script

```
puts v * 3
puts 3 * v
```

produces

```
9, 15
9, 15
```

Add one method to the Vector class to produce this result. The method body should have only one line.

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