#!/usr/bin/env python
# -*- coding: UTF-8 -*-
import random, socket, signal, sys, re, os, time

FLAG="2e70bd4bbe1ed7c69a088c24c5a6fc95"
PORT=2
Timeout=20

slow="""__________________________________________________________________
__________________________________________________________________
______________________________________†888888‡†___________________
_______________________________8†_†††††††††††††††††8†_____________
___________________________†‡_____††††††††††††††††††††8___________
________________________‡†_______†‡‡‡‡‡‡‡8††††††††††††_†‡†________
____________________‡†____†‡‡†_______________‡††††††††††††8_______
_______________________________________________†‡†††††††††‡‡______
_________________________________________________8†††††††††‡‡†____
___________________________________________________††††††††‡‡†8___
___________________________________________________8†††††††‡‡‡‡___
___________________________________________________8†††††††‡‡‡†___
___________________________________________________8††††††‡‡‡††___
___________________________†‡‡†††††††††††††‡8†_____††††††‡‡‡‡‡†___
_______________________†8††††††††††††††††††††††8†_8‡††††‡‡‡‡‡‡‡___
____________________‡††††††††††††††††††††††††††††††‡†††‡‡‡‡‡‡†8___
________‡‡††‡_†8‡††††††††††88†‡8†††‡8†††††††††††††††‡‡‡‡†‡‡‡‡‡____
______††††††8††††††††††††††††8†††888††8††††††††††††‡‡†8††††††‡____
______8†‡†8††††††††††††††††††‡†8††††††8††††††††††††‡‡‡‡¶††††8_____
_______‡‡__8†††††††††8____‡‡††††‡†††††‡†††††††††††‡‡‡‡††8†††______
________‡¶_8††††††_†8_______†††††‡8888††††††††††‡‡‡‡‡‡††‡8†_______
_______‡†‡†________‡8________‡††††††‡8†††††††‡‡‡‡‡‡‡‡‡‡‡‡‡________
_____8†________________†8‡__‡†††††‡‡‡‡†††‡‡‡‡‡‡‡‡‡‡†‡†‡‡†8________
___‡________________________‡8†††‡‡‡‡††‡‡†‡‡‡‡‡‡‡‡‡‡‡†‡†‡‡†_______
__†____‡_____‡_______________†8†‡‡‡††††‡‡‡‡‡‡‡‡‡†‡‡8††††‡††_______
___†_________________________†8††††††††††‡‡‡‡‡‡‡‡‡††††††‡‡†_______
_____8_‡__‡888‡††____††‡¶‡____‡‡†††††††††††‡‡†‡‡†¶†††††‡†‡________
_______†_¶8¶†††††††‡_†††8___†8‡‡††††††††††‡†8‡‡8_¶‡‡†††††‡________
________‡††¶¶††††††‡†8‡__†‡‡‡‡††8†††††††††‡†8______8‡‡__‡_________
________8‡‡____††††_____88††††††††‡‡‡†††††‡†8_____________________
______†††‡‡__‡‡†___‡‡8______________8‡‡‡888‡†_____________________
______________________________________†¶___‡______________________"""

class Field:
	def __init__(self):
		self.w = 10
		self.h = 10
		self.game = [0]*100
		random.seed()
		t=random.randint(15,85)
		for i in range(t):
			random.seed()
			self.game[random.randint(0,99)]=1
		
	def check(self):
		if 0 in self.game:
			return False
		return True

	def change(self, i):
		self.game[i]=(self.game[i]+1)%2
		

	def step(self, i):
		if i>=self.w:
			self.change(i-self.w)
		if i<self.w*(self.h-1):
			self.change(i+self.w)		
		if i%self.w!=0:
			self.change(i-1)
		if i%self.w!=self.w-1:
			self.change(i+1)
		self.change(i)

	def write(self, stream):
		screen = ""
		
		for i in range(self.h):
			for j in range(self.w):
				if self.game[i*self.h+j]:
					screen+='+'
				else:
					screen+='-'
			screen+='\n'
		
		stream.send(screen)


sock = socket.socket()
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('', PORT))
sock.listen(10)

signal.signal(signal.SIGCHLD, signal.SIG_IGN)


while 1:
	client, addr = sock.accept()
	if os.fork() == 0:
		break
	client.close()
sock.close()

f = Field()
client.send(
"""Be positive, change all minuses to pluses!
Rules: clicking on a cell changed it and it's neighbours.
Format: 
a) "\d\d" - number of cell
b) "(?:\d\d)+" numbers of cells
""")

def handle(line):
	if len(line) < 1:
		return (True, None)
	if len(line) == 1 and line[0] in "qxQX":
		return (False, "Bye")
	global f

	m = re.match("^[0-9]{2,}$",line)
	if m is None or len(line)%2==1:
		return (True, "Error input")
	
	m=re.findall("[0-9]{2}",line)
	m=map(int,m)
	for i in m:
		if i>=f.w*f.h:
			return (True, "Error number")
	for i in m:
		f.step(i)
	
	return (True, None)
		

data = ""

client.settimeout(Timeout)
games=0

try:
	while 1:
		if f.check():
			games+=1
			f = Field()
			if games==100:
				client.send("the flag is: "+FLAG+"\n")
				sys.exit(0)
			client.send("Solved!!! Have a fun and finally you will get a flag\n")
		f.write(client)
		
		data=client.recv(4096)
		if len(data)==0:
			sys.exit(0)
			
		cont, msg = handle(data.replace('\n',''))
		if msg!=None:
			client.send(msg + "\n")
		if cont==False:
			client.close()
			sys.exit(0)
except socket.timeout:
	client.send("So sloooow\n"+slow+"\n")
	sys.exit(0)

sys.exit(0)