####lisp interpreter for rc pairing interview
run.py
calls parse and interpret on input string.
works on simple inputs and not rigorously tested
example output from python3 run.py
Enter code to parse:
(first (list 1 (+ 2 3) 9))
Abstract syntax tree:
['first', ['list', 1, ['+', 2, 3], 9]]
Result: 1