def print_half(arg1):
	print "half of %r is %r" % (arg1, arg1/2)
def print_double(arg1):
	print "double of %r is %r" % (arg1, arg1*2)
	
print_half(65.0)
print_half(32.4)
print_double(2.0)
print_double(34545)
