# FIT2022 Lab 2 example1.py
import time
from threading import *

class ProgramA(Thread):
   def __init__(self,label):
      Thread.__init__(self)
      self.label = label
   def start(self):
      Thread.start(self)
   def run(self):
      for i in range(50):
         print "Program A",self.label,i  
         time.sleep(0.5)

class ProgramB(Thread):
   def __init__(self,label):
      Thread.__init__(self)
      self.label = label
   def start(self):
      Thread.start(self)
   def run(self):
      for i in range(12):
         print "                       Program B",self.label,i*i  
         time.sleep(2)
  
process1 = ProgramA("process 1"); process1.start()
process2 = ProgramA("process 2"); process2.start()
process3 = ProgramB("process 3"); process3.start()

process1.join()
process2.join()
process3.join()