16. shuffle , sample

#shuffle, sample
from random import*
lst = [1,2,3,4,5]
print(lst)   #[1,2,3,4,5]
shuffle(lst)
print(lst)   #[2,3,1,5,4]  무작위로 섞음
print(sample(lst,2))  #lst안에서 2개를 무작위로 뽑음 [2,1]