# pozdro dla Fraza, Hy!
import base64
s0 = "fVhAVUJJXmVJREVCWUNlCBwLUgsBMAwEClJEUyEXAAQBBgQkFhVFFgZTMBUZABgMBysXAwYbSRplHB8WBQASIRsKABwAEmUoAgoVGxIoEQMRCw=="
s = base64.urlsafe_b64decode(s0)
k = "EXPERIS"
r = ''
for i in range(len(s)):
a = ord(s[i])
b = ord(k[i % len(k)])
c = (a ^ b)
if c < 32 or c > 64 and c <= 90:
c += 32
r += chr(c)
print r
IyBwb3pkcm8gZGxhIEZyYXphLCBIeSEKCmltcG9ydCBiYXNlNjQKCnMwID0gImZWaEFWVUpKWG1WSlJFVkNXVU5sQ0J3TFVnc0JNQXdFQ2xKRVV5RVhBQVFCQmdRa0ZoVkZGZ1pUTUJVWkFCZ01CeXNYQXdZYlNScGxIQjhXQlFBU0lSc0tBQndBRW1Vb0Fnb1ZHeElvRVFNUkN3PT0iCnMgPSBiYXNlNjQudXJsc2FmZV9iNjRkZWNvZGUoczApCmsgPSAiRVhQRVJJUyIKciA9ICcnCgpmb3IgaSBpbiByYW5nZShsZW4ocykpOgoJYSA9IG9yZChzW2ldKQoJYiA9IG9yZChrW2kgJSBsZW4oayldKQoJYyA9IChhIF4gYikKCWlmIGMgPCAzMiBvciBjID4gNjQgYW5kIGMgPD0gOTA6CgkJYyArPSAzMgoJciArPSBjaHIoYykKCnByaW50IHI=