Driver Code
head = None NEW_LINE head = Insert ( head , 99 ) NEW_LINE head = Insert ( head , 11 ) NEW_LINE head = Insert ( head , 22 ) NEW_LINE head = Insert ( head , 33 ) NEW_LINE head = Insert ( head , 44 ) NEW_LINE head = Insert ( head , 55 ) NEW_LINE head = Insert ( head , 66 ) NEW_LINE