Shrink and Expand Linked List

Implement a singly linked list with the following operations. - $I$ $x$ – Inserts element $x$ as a first element in the linked list. - $S$ $x$ $y$ – Shrinks the linked list in between the element $x$ and the element $y$, if the element $x$ exists before the element $y$. Otherwise, shrinks the linked list in between the element $y$ and the element $x$ after updating the existing linked list to its