This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.
GoalDuring the galactic war against the Zorglons, the Earth Intelligence Agency intercepted a lot of messages.
It is your task to decode them.
You know that :
1/ The messages are always in capital letter. Words are separated with white spaces. You don't have to decode these spaces.
2/ They are coded with a caesar cypher.
3/ The Zorglons always include the word "CHIEF" in them to be sure there are true messages. Be careful, this must be a separated word : a message such as "HANDKERCHIEF" is not a true message.
Note that the caesar cipher is a shift in the alphabet : for example, with a right shift of 3, A becomes D, B becomes E ... and Z becomes C (cf. https://en.wikipedia.org/wiki/Caesar_cipher).
Given a message, you must decode it (i.e. find the correct shift and output the text containing the word "CHIEF") or output "WRONG MESSAGE" if it is not a true message.
Ligne 1 One string to decode
Ligne 1 One decoded string or "WRONG MESSAGE"
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