def factorial(n):
    if n <= 1:
        return 1
    else:
        return n * factorial(n-1)

def printList(L):
    # If it is empty do nothing
    if not L: return
    # If it's a list call printList on 1st element
    if type(L[0]) == type([]):
        printList(L[0])
    else: # No list so just print
        print L[0]
    # Now process the rest of L
    printList(L[1:])