# Program to encrypt using Caesar cipher
# Matt Bishop, Apr. 17, 2009
# for ECS 10 Spring 2009
#
# this corresponds to a key of 'D' ('A' = 0, ... 'Z' = 25)
key = 3;
#
# ask user for input message (plaintext)
#
plain = raw_input("Enter your message here:");
#
# initialize output (ciphertext)
#
cipher = "";
#
# encipher each character and append it to current ciphertext
#
for i in plain:
	# shift it by key amount
	c = (ord(i) + key) % 256;
	cipher = cipher + chr(c);
#
# print it, surrounded by quotes
#
print "\"%s\"" % cipher;