python一行输入n个数据问题

n = input()
list = []
for i in n.split():
    list.append(int(i))
for i in list:
    print(i)

n = input()
list = [int(j) for j in n.split()]
print(list)

list= [int(num) for num in input().split()]
print(list)

count = 0
sum = 0
while True:
    a = int(input())
    sum=sum + a
    count += 1
    print(sum/count)

count = 0
sum = 0
while True:
    a = int(input())
    if a =="quit":
        break
    sum=sum + a
    count += 1
    print(sum/count)