import socket
import time
import random
import math
import datetime

HOST = "challenges.ctfd.io"
PORT = 30264

def main():
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    my_tm = round(time.time() / 100, 5)
    s.connect((HOST, PORT))
    srv_nums = []
    print("current time: %f" % my_tm)

    recvd = s.recv(4096).decode("UTF-8")
    while True:
        if len(srv_nums) != 2:
            s.sendall(b"r\n")
            recvd = s.recv(128).decode("UTF-8")
            recvd = recvd[:recvd.find("\n")]
            srv_nums.append(int(recvd))
            continue
            break

    print("bruteforcing seed")
    print("searching for numbers:", srv_nums)
    flag_found = False
    print("displaying progress...\n")
    work_begin = time.time()

    my_tm = round(my_tm - 30, 6)
    while True:
        random.seed(my_tm)
        my_rnd = random.randint(1, 100000000)
        if my_rnd == srv_nums[0]:
            print("found time seed: %f" % my_tm)
            tmprng = random.randint(1, 100000000)
            print(tmprng)
            if tmprng != srv_nums[1]:
                print("second number doesn't match, skipping")
                my_tm = round(my_tm + 0.000001, 6)
                continue
            flag_found = True
            break
        my_tm = round(my_tm + 0.000001, 6)
        if my_tm == float(math.floor(my_tm)):
            print(int(my_tm))
                work_end = time.time()
    print("finished job in %s" % str(datetime.timedelta(seconds=work_end - work_begin)))

    if not flag_found:
        print("seed not found")
        return

    print("\nsubmitting the answer")
    print("\nserver numbers")
    for x in srv_nums:
        print("| %i |" % x, end="")

    print("")
    s.sendall(b"g\n");

    first_rnd = random.randint(1, 100000000)
    recvd = s.recv(4096)
    print(recvd)
    s.sendall(str(first_rnd).encode("utf-8") + b"\n")
    print("sent first guess: %i" % first_rnd)

    second_rnd = random.randint(1, 100000000)
    recvd = s.recv(4096)
    print(recvd)
    s.sendall(str(second_rnd).encode("utf-8") + b"\n")
    print("sent second guess: %i" % second_rnd)

    while True:
        recvd = s.recv(4096).decode("utf-8")
        if not recvd:
            break
        print(recvd)

if __name__ == "__main__":
    main()

found time seed: 16045235.553690
95870824
finished job in 0:03:57.809325

submitting the answer

server numbers
| 71504180 || 95870824 |
b'Guess the next two random numbers for a flag!\nGood luck!\nEnter your first guess:\n> '
sent first guess: 94324429
b"Wow, lucky guess... You won't be able to guess right a second time\nEnter your second guess:\n> "
sent second guess: 68431170
What? You must have psychic powers... Well here's your flag: 
nactf{ch000nky_turn1ps_1674973}