ReversedAtbas

import math

alphabet = "abcdefghijklmnopqrstuvwxyz"
print()
print("Enter a message  below to cipher it: ")
message = input("Message here: ")

# CONVERT my message = STRING ----> LIST
messageList = []
for i in range(len(message)):
    messageList.append(message[i])

print(messageList)

# Copy messageList to initialMessageList
initialMessageList = messageList.copy()
# I will work with messageList to make the changes to my messsage
# 1st step: REVERSE MY LIST
for i in range(int(len(messageList)/2)):                                    # Scan the half list and reverse it
    temp = messageList[i]                                                   # Swap method for elements in list
    messageList[i] = messageList[len(messageList) - 1 - i]
    messageList[len(messageList) - 1 - i] = temp
    # OR: messageList.reverse()

reversedList = messageList.copy()                   # I keep the reversed messageList in the variable reversedList
print(reversedList)

# 2nd step: ATBAS SESSION
# I will create another list to add the elements that I have from Atbas Code
atbasList = []
for ch in messageList:                              # ch = a character from the messageList
    for i in range(len(alphabet)):                  # I scan the alphabet in order to find my "ch" character
        if ch == alphabet[i]:
            atbasList.append(alphabet[len(alphabet) - 1 - i])       # In case of equality ----> I add in atbasList the appropriate letter
            break

print(atbasList)

'''
My Lists now:
1) initialMessageList: Contains the letters of the given word
2) reversedList: Contains the letters of the given word, but in reversed form
3) atbasList: Contains the letters of the given word, in BUT REVERSED and ATBAS-ED form
'''

print()
print("Message first: " + ''.join(map(str, initialMessageList)))
print("Message after: " + ''.join(map(str, atbasList)))