class Node(object):
def __init__(self, data=None, next=None):
self.data_ = data
self.next_ = next
def get_data(self):
return self.data_
def set_data(self, data):
self.data_ = data
def get_next(self):
return self.next_
def set_next(self, next):
self.next_ = next
def __str__(self):
return str(self.data_)