# your code goes here

from time import sleep
from multiprocessing.dummy import Pool as ThreadPool

def parallels(foo1, foo2):
    pool = ThreadPool(4)
    def parent(i):
        if i == 1:
            foo1()
        else:
            foo2()
    results = pool.map(parent, [1, 2])
    pool.close()
    pool.join()

def p1():
    while True:
        print(1)

def p2():
    while True:
        print(2)

parallels(p1, p2)