DefCon CTF 2015 Quals: MathWhiz solution

math.py

import socket

HOST = 'mathwhiz_c951d46fed68687ad93a84e702800b7a.quals.shallweplayaga.me'
PORT = 21249

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))

while(1):
  #print s.recv(1024)
  problem = s.recv(1024).split('=')
  problem = problem[0]
  print problem
  if '{' in problem:
  	problem = problem.replace("{", "(")
  	problem = problem.replace("}", ")")
  if '[' in problem:
  	problem = problem.replace("[", "(")
  	problem = problem.replace("]", ")")
  if 'ONE' in problem:
    problem = problem.replace("ONE", "1")
  if 'TWO' in problem:
  	problem = problem.replace("TWO", "2")
  if 'THREE' in problem:
  	problem = problem.replace("THREE", "3")
  if '^' in problem:
    problem = problem.replace("^", "**")
  answer = str(eval(problem))
  print answer
  s.send(answer)
  #print "lolol"