import sys
import io
import threading
import time
import pickle

encoded = b"\x80\x03cdecimal\nDecimal\nq\x00X\x02\x00\x00\x0010q\x01\x85q\x02Rq\x03."

bytes_io = io.BytesIO(encoded)
unpickler = pickle.Unpickler(bytes_io)


def find_class():
    unpickler.find_class("decimal", "Decimal")


threads = []
for i in range(int(sys.argv[1])):
    threads.append(threading.Thread(target=find_class))

for thread in threads:
    thread.start()