from random import *
my_list = list(range(1, 21))
shuffle(my_list);
print(my_list)
coupon = sample(my_list, 4)
print(coupon)
chicken = sample(coupon, 1);
coupon.remove(chicken[0]);

print("-- 당첨자 발표 --")
print("치킨 당첨자 : {}".format(chicken[0]))
print("커피 당첨자 : {}".format(coupon[:3]))
print("-- 당첨자 발표 --")