Question: Ruta has generated a random 21-node full binary tree, in which each node is labeled with a consonant in the English alphabet (Y is considered

Ruta has generated a random 21-node full binary tree, in which each node is labeled with a consonant in the English alphabet (Y is considered a consonant for this tree). Unfortunately, the only record that Ruta wrote down for this tree were the following traversals of the nodes:

Inorder: PTRGCSYWKVLJQZBFMNDXH

Postorder: PRCGYSKWTLQJBMFDNZHXV

Given the two traversal orders above, list the nodes in Ruta's tree according to a Preorder traversal.

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