from threading import Thread
from time import sleep
from random import randint

thrd = 1

def threaded_function():
    global thrd
    print('-> 1 thread is running\r\n')
    thrd = thrd + 1
    sleep(randint(1, 5))
    print('<- 1 thread is stopped\n')
    thrd = thrd - 1

def threaded_function1():
    global thrd
    print('-> 2 thread is running\r\n')
    thrd = thrd + 1
    sleep(randint(1, 5))
    print('<- 2 thread is stopped\n')
    thrd = thrd - 1

def threaded_function2():
    global thrd
    print('-> 3 thread is running\r\n')
    thrd = thrd + 1
    sleep(randint(1, 5))
    print('<- 3 thread is stopped\n')
    thrd = thrd - 1


def threaded_function3():
    global thrd
    print('-> 4 thread is running\r\n')
    thrd = thrd + 1
    sleep(randint(1, 5))
    print('<- 4 thread is stopped\n')
    thrd = thrd - 1

def threaded_function4():
    global thrd
    print('-> 5 thread is running\r\n')
    thrd = thrd + 1
    sleep(randint(1, 5))
    print('<- 5 thread is stopped\n')
    thrd = thrd - 1

def threads_start():
    Thread(target = threaded_function).start()
    Thread(target = threaded_function1).start()
    Thread(target = threaded_function2).start()
    Thread(target = threaded_function3).start()
    Thread(target = threaded_function4).start()

def main():
    raw_input("Press enter to start")
    threads_start()
    while 1>0:
        if thrd == 1:
            key = raw_input("Press Enter to continue,\r\n press Ctrl + C to close: ")
            threads_start()
main()