Given a Binary Tree, your task is to print its level order traversal where each level is separated by $

For the below tree the output will be 1 $ 2 3 $ 4 5 6 7 $ 8 $

1

/ \

2 3

/ \ / \

4 5 6 7

\

8

**Input:**

The task is to complete the method which takes one argument, root of Binary Tree. The struct Node has a data part which stores the data, pointer to left child and pointer to right child.

There are multiple test cases. For each test case, this method will be called individually.

**Output:**

The function should print the level order traversal of the tree as specified in the problem statement .

**Constraints:**

1 <=T<= 20

1 <= Number of edges<= 1000

1 <= Data of a node<= 100

**Example:
Input:**

2

2

1 2 R 1 3 L

4

10 20 L 10 30 R 20 40 L 20 60 R

**Output:**

1 $ 3 2 $

10 $ 20 30 $ 40 60 $

There are two test casess. First case represents a tree with 3 nodes and 2 edges where root is 1, left child of 1 is 3 and right child of 1 is 2. Second test case represents a tree with 4 edges and 5 nodes.

**Note:**The **Input/Ouput** format and **Example** given above are used for system's internal purpose, and should be used by a user for **Expected Output** only. As it is a function problem, hence a user should not read any input from stdin/console, and should not print anything on stdout/console. The task is to complete the function specified, and not to write the full code.

Author: Shubham Joshi 1

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