在空格处填入以下哪个语句，不能得到从大到小的排序结果是? (?)
list1 =[1,5,9,67,4,44,99]
for i in range(2):
a =int(input())
list1.append(a)
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for i in list1:
print(i,end =" ")
list1.sort()
list1 =sorted(list1,reverse=True)
list1.sort(reverse=True)
list1.sort()
list1 =list1[-1::-1]
