Problem 9

Create a function that takes an int as its parameter and returns another function. The returned function must take a as many as needed int as its parameter, and return a slice of the int multiplied by the int that was passed into the first function.

first := factory(15)
first(2, 3, 4) // [30, 45, 60]

second := factory(2)
second(1, 2, 3, 4) // [2, 4, 6, 8]