You are asked to write a simple cypher that rotates every character (in range [a-zA-Z], special chars will be ignored by the cipher) by 13 chars. As an addition to the original ROT13 cipher, this cypher will also cypher numerical digits ([0-9]) with 5 chars.
Example:
    "The quick brown fox jumps over the 2 lazy dogs"
will be cyphered to:
    "Gur dhvpx oebja sbk whzcf bire gur 7 ynml qbtf"
Your task is to write a ROT13.5 (ROT135) method that accepts a string and encrypts it.
Decrypting is performed by using the same method, but by passing the encrypted string again.
Note: when an empty string is passed, the result is also empty.
When passing your succesful algorithm, some random tests will also be applied. Have fun!
def ROT135(message):
  first  = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  trance = 'NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm5678901234'
  return message.translate(str.maketrans(first, trance))  
def ROT135(message):
  first  = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  trance = 'NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm5678901234'
  return message.translate(str.maketrans(first, trance))  