import requests
from base64 import b64decode,b64encode

base = "dzI4WGNa45b4DY7K2+7MG1c94WZPcXN04aJVz6Nn7wC83aScfyHhKORn9VoHD8n1x5eECkvlhJVw/TKwjaJq1w=="
t = b64decode(base)
t1 = "false"
t2 = "true "
s = ""
for i in range(len(t1)):
    s = s+chr(ord(t[11+i])^ord(t1[i])^ord(t2[i]))

t = b64encode(t[:11]+s+t[16:])

r = requests.post(b"https://secretsheepsociety.2019.chall.actf.co/enter", cookies = {b"token":t})
print(r.text)