import reduce

def solve():
	import sys
	s = sys.stdin.read().strip()
	
	if not (1 <= len(s) <= 32):
		print(400)
		return
	if not re.fullmatch(r'[A-Za-z0-9_-]+', s):
		print(400)
		return
	if s[0] in '_-' or s[-1] in '_-':
		print(400)
		return
	print(200)

sovle()