def main():
	print("This program illustrates a chaotic function")
	x1=float(input("Enter the first seed between 0 and 1: "))
	x2=float(input("Enter the second seed between 0 and 1: "))
	print()
	print("index  ",x1,"  ",x2)
	print("------------------")
	for i in range(1,11):
		x1=3.9*x1*(1-x1)
		x2=3.9*x2*(1-x2)
		print("{0:2}{1:15.6f}{2:10.6f}".format(i,x2,x2))
main()
