def main():
	check_id = input()
	if not (1 <= len(check_id) and len(check_id) <= 32):
		print("400")
		return
	if check_id[0] in ["-", "_"] or check_id[-1] in ["-", "_"]:
		print("400")
		return
	whitelist = [*range(ord("a"), ord("z")+1), *range(ord("A"), ord("Z")+1), *range(ord("0"), ord("9")+1), ord("-"), ord("_")]
	if [a for a in check_id if not ord(a) in whitelist]:
		print("400")
		return
	print("200")
	return

main()