1. Given the following function:

def mystery(sequence):
  result = ""

  for val in sequence:
    result = result + val + val

  return result


For each of the following calls, state what would be returned (or an error):

a. mystery(5)
b. mystery([1, 2, 3])
c. mystery("abcd")
d. mystery(("apples", "bananas"))
e. mystery(["apples", "bananas"])
f. mystery("123")

2. What would the following calls print out:

a. print map(abs, [-1, 1, -2, 2])
b.
import math

def dist(point):
  (x, y) = point

  return math.sqrt(x*x + y*y)

print map(dist, [(1,2), (3,4)])