from base64 import *
q = 'c3d1e93cf8dd06844c8d35b9b306cf987f26b6a1199dfa7e5842a9d665ceb96414d70ba2f7b7e0877fa08abcf9e4ae06'
c = b64decode('pzzOe4PEbspjpi+Kmvk5M2K5Rw==')

m = ''

p = []

for i in range(256):
        p.append(i)


g = 0
for n in range(256):
        h = p[n]
        g = (g + h + ord(q[n%len(q)])) % 256
        p[n] = p[g]
        p[g] = h


g = 0
for f in range(0,len(c),1):
        n = f % 256
        h = p[n]
        g = (g + h) % 256
        d = p[n] = p[g]
        p[g] = h

        num = ord(c[f])
        m += chr(num ^ p[(d+h) % 256])

print m