Please read all instructions

Please answer with Scheme

Please let me know if you are making a new $.$rkt file or if we are changing the one I will provide

Please post all code for any files needed as one block per file

The datatype 'bintree' will be provided below

I do not understand what I am supposed to do$,$ and would just like someone to explain the process and walk me through the code.

bintree.rkt:

#lang racket

$($require $($lib "eopl.ss$"$ "eopl"$))$

$($define$-$datatype bintree bintree?

$($empty$-$tree$)$

$($node $($value integer?$)$

$($left bintree?$)$

$($right bintree?$))$

$)$

$($define my$-$tree

$($node $7$

$($node $12$

$($empty$-$tree$)$

$($empty$-$tree$))$

$($node $13$

$($empty$-$tree$)$

$($empty$-$tree$)))$

$)$

;; Fuction call to test output

my$-$tree