from random import shuffle, randint

result = { "swap": 0, "not_swap": 0 }

doors = [ 0, 0, 1]
door_indices = list(range(3))

for i in range(500):
    shuffle(doors)
    shuffle(door_indices)
    door_chosen, door_opened, door_swap = door_indices
    if doors[door_opened] == 1:
        door_swap, door_opened = door_opened, door_swap

    if doors[door_swap] == 1:
        result["swap"] += 1
    elif doors[door_chosen] == 1:
        result["not_swap"] += 1
    else:
        print("WTF?")
        break

p100 = result["swap"] + result["not_swap"]

p_swap = result["swap"]*100/p100

p_not_swap = result["not_swap"]*100/p100

print("Swap door\t: %.2f%%" % p_swap)
print("Don't swap door\t: %.2f%%" % p_not_swap)