How to add value in existing list without using insert and extend operators

Question

https://code.sololearn.com/cpN5kJQKwBwU/?ref=app

Answer 1

You could move before that the rest of a list after the insert point backwards.

Answer 2

I don't want to use insert operators

Answer 3

There I mean without insert in this way
list[point] = x

Answer 4

Show me demo

Answer 5

l1 = list(range(9))
print(l1)
p = 5
l2 = l1[:p]
l3 = [9]
l4 = l1[p:]
l5 = l2+l3+l4
print(l5)

#shortly code
l2 = l1[:p] + [9] + l1[p:]
print(l2)