Transform To Left-cloned Tree

easy
1. You are given a partially written BinaryTree class.
2. You are required to complete the body of createLeftCloneTree function. The function is expected to create a new node for every node equal in value to it and inserted between itself and it's left child. Check question video for clarity.
3. Input and Output is managed for you. 

Input Format

Input is managed for you.

Output Format

Output is managed for you.

Constraints

None

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input
15
50 25 12 n n 37 n n 75 62 n n 87 n n
Output
50 <- 50 -> 75
25 <- 50 -> .
25 <- 25 -> 37
12 <- 25 -> .
12 <- 12 -> .
. <- 12 -> .
37 <- 37 -> .
. <- 37 -> .
75 <- 75 -> 87
62 <- 75 -> .
62 <- 62 -> .
. <- 62 -> .
87 <- 87 -> .
. <- 87 -> .
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Transform To Normal From Left-cloned Tree

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