[GXYCTF2019]StrongestMind

from requests import *
import re

url = "http://204fa602-0a0a-45d3-9b26-3c9348ccf6e9.node3.buuoj.cn/index.php"
s = session()
rr = re.compile(r"[0-9]+ [+|-] [0-9]+")

r = s.get(url)
r.encoding = "utf-8"
data = {"answer":eval(rr.findall(r.text)[0])}
r = s.post(url,data=data)

for i in range(1000):
	answer = eval(rr.findall(r.text)[0])
	data = { "answer" : answer }
	r = s.post( url , data=data)
	r.encoding = "utf-8"
	print('[+%d]:'%(i) + str(answer))

print(r.text)