======Trees=====

<code>

class Node:

    def __init__(self, ch, freq, left, right):

        self.left = left
        self.right = right
        
        # Whatever values you want to store
        self.ch = ch
        self.freq = freq

class Tree:

    def __init__(self, root = None):
        self.root = root

    def get_root(self):
        return self.root

    def __str__(self):
    
</code>