Crypto-Puzzle for LCS35 Time Capsule.
Created by Ronald L. Rivest. April 2, 1999.

Puzzle parameters (all in decimal):

n = 403896783473158044370805025424786549592681694775819778442382
    8815

t = 79685186856218

z = 173098064156991636077402785527386284934430483345618280565437
    142

To solve the puzzle, first compute w = 2^(2^t) (mod n).
Then exclusive-or the result with z.
(Right-justify the two strings first.)

The result is the secret message (8 bits per character),
including information that will allow you to factor n.
(The extra information is a seed value b, such that 
5^b (mod 2^1024) is just below a prime factor of n.)
 
