Write a common Lisp function called "my_rotate", which takes a list and pops off the first element and moves it to the end of the list.

> l (1 2 3 4 5) > (my_rotate l) (2 3 4 5 1)

Extend my_rotate into a LISP function called "my_rotate_n" which takes a list and a number n and performs the "my_rotate" operation n times.

> n 2 >

(my_rotate_n 1 2)

(3 4 5 1 2)