def main():
	s = input()

	if not (1 <= len(s) <= 32):
		return 400
	
	if any(x in ['-', '_'] for x in [s[0], s[-1]]):
		return 400
	
	if not all(x.isalnum() or x in ['-', '_'] for x in s):
		return 400
	
	return 200
	
print(main())