My code:

lst = [int(i) for i in input().split()]
a = max(lst)
b = min(lst)
lst[lst.index(a)], lst[lst.index(b)] = lst[lst.index(b)], lst[lst.index(a)]
print(' '.join([str(i) for i in lst]))

The answer:

a = [int(s) for s in input().split()]
index_of_min = 0
index_of_max = 0
for i in range(1, len(a)):
    if a[i] > a[index_of_max]:
        index_of_max = i
    if a[i] < a[index_of_min]:
        index_of_min = i
a[index_of_min], a[index_of_max] = a[index_of_max], a[index_of_min]
print(' '.join([str(i) for i in a]))

I see that there are answers posted to solve this challenge. I am wanting to know why my version does not work.