Script to beat the game on port 1337 of Vulnhub box 'Djinn'. First thing I've written in python so not very pretty...

game.py

from pwn import *
import operator

r = remote('172.16.123.208', 1337)
a = r.readline_startswith('(').decode("utf-8")
first = int(a[1])
oper = a[5]
second = int(a[9])
ops = {"+": operator.add, "-": operator.sub,
    '*': operator.mul, '/': operator.truediv}
data = ops[oper](first, second)
print(a)
print(ops[oper](first, second))
r.sendline(str(data))
for x in range(0,1000):
    a = r.readline_startswith('>').decode("utf-8")
    first = int(a[3])
    oper = a[7]
    second = int(a[11])
    ops = {"+": operator.add, "-": operator.sub,
        '*': operator.mul, '/': operator.truediv}
    data = ops[oper](first, second)
    print(a)
    print(ops[oper](first, second))
    r.sendline(str(data))
print(r.readline())