This is a basic Python code that can be used to decode messages encoded by the Secret Message Encoder.
This code first takes the secret message as input and then processes the message to produce the original message before encryption.
It first determines the value that has been used to encrypt the message. Once this value is obtained, it reverts the message back to its original state. The code then determines the key used to encode the message. Once this is established, the code removes every instance of the key from the message.
After this, the code displayed the original message to the user.
Please run the code on any Python IDLE as some of the characters in the secret message are not supported by the command prompt, and thus will result in a wrong final message.