next node none

"""
# Definition for a Node.
class Node:
    def __init__(self, val: int = 0, left: 'Node' = None, right: 'Node' = None, next: 'Node' = None):
        self.val = val
        self.left = left
        self.right = right
        self.next = next
"""

class Solution:


    def travarse (self, node,q):

        if node == None:
            return None





    def connect(self, root: 'Node') -> 'Node':


        q = []
        q.append(root)
        q1 = []
        while len(q)>0:

            node = q.pop(0)
            if node.left != None:
                q1.append(node.left)


            if node.right != None:
                q1.append(node.right)


            if len(q)==0:
                node = q1.pop(0)

                while len(q1)>0:
                    node2 = q1.pop(0)

                    node.next = node2
                    node = node2
                    q.append(node2)