You are given two files, encrypted.txt and substitution.txt. The file encrypted.txt has text which needs to be encrypted. The file substitution.txt has the following 1-1 substitution map: "xrhnkesdfgowqjvlzaibptmycu". Write a C program that encrypts the file encrypted.txt with the key from substitution.txt and places the output to decrypted.txt.

Example: If the file encrypted.txt includes "Cfppk wkbvrp tfsdj. Ckl rbf xkz vkhrx?" Then the file decrypted.txt should include "Hello mortal being. How are you today?"

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