it's about list

Question

list = [1,1,2,3,5,8,13]
print(list[list[list[4]])
the result is 8, but I don't know why.

thank You to explain.

Answer 1

list[4] is 5
hence, list[list[4]] is list[5], which is 8

list[list[list[4]]] is list[8], which is undefined.
Your code snippet is missing a closing ]
and if the third closing ] exists, it will raise Index Out Of Range Error instead of printing 8