神们给解个题呗，我是真不懂这玩意啊，太要命了

def output():
    lst = list(map(int,input().split()))
    lst = sorted(lst)
    idx = len(lst)
    if idx%2:
        mid = lst[idx//2]
    else:
        mid = (lst[idx//2]+lst[idx//2-1])/2
    print(lst, mid)