#!/usr/bin/env python
#------------------------------------------------------------------
#	tosscoin.py
#
#	This program uses the 'sleep()', 'flush()' and 'randint()' 
#	Python functions in a computer simulation of coin-tossing.
#
#		execute using:  $ python tosscoin.py
#
#	programmer: ALLAN CRUSE
#	written on: 23 JAN 2011
#------------------------------------------------------------------

import time 		# for sleep()
import sys		# for flush()
import random		# for randint()

# announce the simulation
print "\nNow tossing a coin ",

# create the visual delay
time.sleep( 0.10 )
for x in range(0,8):
	time.sleep( 0.10 )
	print ".", 
	sys.stdout.flush()
time.sleep( 0.10 )

# genrate a random result: zero or one 
y = random.randint(0,1)

# output the result's interpretation
if ( y > 0 ):
	print " HEADS"
else:
	print " TAILS"
print