Reorder List Interleaving First and Last Elements

You are given the head of a singly linked-list. The list can be represented as: `L0 -> L1 -> ... -> Ln - 1 -> Ln` Reorder the list to be on the following form: `L0 -> Ln -> L1 -> Ln - 1 -> L2 -> Ln - 2 -> ...` You may not modify the values in the list's nodes. Only nodes themselves may be changed. ### Constraints - The number of nodes in the list is in the range `[1, 5 * 10^4]`. - `1 <= Node.val <= 1000` ### Input Format A single line of space-separated integers representing the list. ### Output Format Print the space-separated integers of the reordered list.