import random

당첨자수 = 3
후보 = "cljg918, woo7739, jhyun6913.park, zenigame, nand, louispark, cheolwoo-kim, greenjuice, get-cheaper, coffeenut, floridasnail, danbain, jaywon, mastertri, lee5, lws, woolgom, julianpark, lsj01090, breath"

lotteryBox = 후보.split(',')
random.shuffle(lotteryBox)

for i in range(0,당첨자수):
  print(lotteryBox[i])