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Day 9 of learning python as a beginner. Topic: string slicing and manuplating. Strings are immutable i.e. they cannot be changed or modified however we can create a new string using the old one. Strings are made up of letters which can be indexted (counted in whole numbers). String slicing uses these numbers to find the letter on that specifinc position and creates a new string based on the result. (I hope I explained it correctly it is kind of confusing 😅). Based on this knowledge I create an encrypter-decrypter which can use string slicing to encrypt and decrypt your message. I used while loop to make it infinite and used functions to store logic of encryption and decryption in it. During the process I got introduced to functions like chr and ord. Before explaining them let me tell you about unicode - it is a standard that assigns a unique code number to every character from every language, symbol, emoji, and script in the world - so that the computers can store, display, and process text consistently. I have added a first layer of encryption by reverting the word and then using unicode to shift the letter by one. encrypted_word = chr(ord(letter) + 1) here ord converts every letter to its unicode and then add 1 to it (essentially it this line changes the letter to next letter by 1 for example a to b, b to c, etc). On the other hand chr converts the new unicode to the letter example if 65 is A, then 65 + 1 = 66 which is B. By reconstructing this process in backward I decrypt to find the original message. I hope I was able to explain this code well fell free to ask any question regarding the code (your questions help me develop a better undestanding of my code). I would also appreciate any suggestions and advices to improve my code. And here's my code and its result.