from random import randint
command = ""
interval_set = []

while command.lower() != "x":
	print "--------------------------------"
	if (len(interval_set) == 0):
		print " 1) Set interval set"
	else:
		print "Current interval set: ", " ".join(interval_set)
		print " 1) Change interval set"
	print " 2) Start to generate "
	print " x) Exit"
	command = raw_input(">").strip()
	if (command == "1"):
		interval_set = raw_input("Set, seperated by spaces> ").strip().split()
		print interval_set
	if (command == "2"):
		print "--------------------------------------"
		num_steps = int(raw_input("Number of steps to generate> ").strip())
		print "OUTPUT: ",
		for step in range(0,num_steps):
			print interval_set[randint(0, len(interval_set)-1)],
		print ""