ROT13 is its own inverse that is, to undo ROT13, the same algorithm is applied, so the same action can be used for encoding and decoding. The algorithm provides minimal cryptographic security, and is often cited as a canonical example of weak encryption. ROT13 has inspired a variety of letter and word games on-line, and is frequently mentioned in newsgroup conversations.
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source code ROT-13 encrypt / decrypt (Caesar cipher):


The fee for different therapists can depend on the total
duration of their therapy plan. It is not uncommon for massage therapists to consult
with physiotherapists before and during a massage. RTs can also explore the option of branching out
into business roles with equipment manufacturers, or join
the world of research and academics.
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