import subprocess
import random
s = open("log", "w")
s.close()
s = open("log", "r")
y = s.read()
s.close()
x = random.randint(0,65535)
s = open("log", "w")
s.write(str(x))
s.close()
subprocess.check_output(["cp", "bs" + y + ".py", "bs" + str(x) + ".py"])
subprocess.check_output(["python", "bs" + str(x) + ".py"])