clas
  
s ListNode(object):
    def __init__(self,data):
        self.data=data
        self.next=None

class LinkList(object):
    def __init__(self):
        self.head=ListNode(None)#头节点
    def Empty(self):#判空
        if self.head.next==None:
            return True
        else:
            return False

    def initwei(self,e):#尾插
        p=self.head
        while p.next:
            p=p.next
        q = ListNode(e)
        p.next=q


    def inittou(self,e):#头插
        q = ListNode(e)
        q.next=self.head
        self.head=q


    def Get(self,i):#查找第i个点
        if self.Empty():
            return None
        j=0
        p=self.head
        while p.next!=None and j<i:
            p=p.next
            j+=1
        if j==i:
            return p.data
        else:
            return None
    def prit(self):
        p = self.head
        while p.next != None:
            print(p.next.data)
            p=p.next
        print('
')

    def delet(self, index):
        count = 0
        cur = self.head

        while cur.next and count < index - 1:
            count += 1
            cur = cur.next

        if not cur:
            return 'Error'

        del_node = cur.next
        cur.next = del_node.next


if __name__=='__main__':
    mylist_A=LinkList()

    for i in range(0, 6):
      print('input value:')
      n=int(input())
      mylist_A.initwei(n)
    mylist_A.prit()

    print('input a place to search:')
    n = int(input())
    qq = mylist_A.Get(n)
    print(qq)
    print('
')

    print('input a place to delete:')
    n = int(input())
    mylist_A.delet(n)
    mylist_A.prit()
    print('
')