Write a function named SwitchFront that accepts two non-empty linked-list named List 1 and List2. The SwitchFront function should switch the first elements of two lists. For example, if List1 contains the elements: a, c, d,r, tand List2 contains: @, &, 6, a, b, then the call SwitchFront(List1, List2); would leave List 1 with the elements: @,cd, rt and List with the elements: a, &, 6, a, b