import threading
import time

def print_numbers(threadName, delay):
    count = 0
    while count < 5:
        time.sleep(delay)
        count += 1
        print(f"{threadName}: {time.ctime(time.time())}")

try:
    thread1 = threading.Thread(target=print_numbers, args=("Thread-1", 2))
    thread2 = threading.Thread(target=print_numbers, args=("Thread-2", 4))

    thread1.start()
    thread2.start()

    thread1.join()
    thread2.join()
except Exception as e:
    print(f"Error: {e}")