"XSmPyeyHlTFjlvoIM.ZCuTlvrLkyVYjdJBqtdM SozWLxOrayj" The unscrambling process is as follows. 1. Set an index x to 0 2. Get the character at position x 3. If the character is a full stop, print your result string (omitting the first character) and stop 4. if not a full stop, add that character to your result string 5. Get the low order 4 bits of …

unscramble.py

string = "XSmPyeyHlTFjlvoIM.ZCuTlvrLkyVYjdJBqtdM SozWLxOrayj"

# unscrambling start
x = 0
result = ""
while True:
    ch = string[x]
    if ch == '.':
        print(result[1:])  # print the result string omitting the first character
        break
    else:
        result += ch

    bin_rep = bin(ord(ch))[1:]
    low_4bin_value = bin_rep[-4:]
    value = int(low_4bin_value, 2)

    # add 1 to the number  & check if the resultant number is odd/even
    if (value & 1) == 1:  # odd
        x -= value + 1
    else:
        x += value + 1