import random

당첨자수 = 4
후보 = "cljg918, zenigame, jhyun6913.park, nand, coffeenut, danbain, get-cheaper, cheolwoo-kim, greenjuice, louispark, woo7739, jaywon, jaytop, floridasnail, mastertri, chocomuscake, woolgom, breath, nrg, devilcat, miyata1987"

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

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