Python program simulating drawing marbles from a bag

simulateMarbles.py

import random

def takeMarble(isRed, bag):
  color = 'red' if isRed else 'blue'
  if isRed:
    return ((bag[0] - 1, bag[1]), color)
  else:
    return ((bag[0], bag[1] - 1), color)

def pickMarble(bag):
  count = bag[0] + bag[1]
  if bag[0] == 0:
    return takeMarble(False, bag)
  if bag[1] == 0:
    return takeMarble(True, bag)
  pick = random.randint(0, count)
  if pick < bag[0]:
    return takeMarble(True, bag)
  else:
    return takeMarble(False, bag)

def putMarble(isRed, bag):
  if isRed:
    return (bag[0] + 1, bag[1])
  else:
    return (bag[0], bag[1] + 1)

def pick2MarblesAndReplace(bag):
  # 1st iteration
  (intBag, color1) = pickMarble(bag)
  # 2nd iteration
  (lastBag, color2) = pickMarble(intBag)
  isRed = False if color1 == color2 else True
  return putMarble(isRed, lastBag)

def whatIsLast():
  # (red count, blue count)
  bag = (101, 100)
  while (bag[0] + bag[1]) > 1:
    bag = pick2MarblesAndReplace(bag)
  print(bag[0], bag[1])
  if bag[0] > bag[1]:
    return 'red'
  else:
    return 'blue'

answers = [whatIsLast() for i in range(100)]
for answer in answers:
  print(answer)