import os, time
pid = os.fork()
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
a = []
if pid == 0:
    time.sleep(1)
    a.append(0)
    print(a)
else:
    a.append(1)
    print(a)

bd87a92ea83d1db3427cef5d1ddd293a3ab9fecf
<mask token>

<mask token>
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
<mask token>
if pid == 0:
    time.sleep(1)
    a.append(0)
    print(a)
else:
    a.append(1)
    print(a)

<mask token>
pid = os.fork()
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
a = []
if pid == 0:
    time.sleep(1)
    a.append(0)
    print(a)
else:
    a.append(1)
    print(a)

import os, time
pid = os.fork()
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
a = []
if pid == 0:
    time.sleep(1)
    a.append(0)
    print(a)
else:
    a.append(1)
    print(a)
