table = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz-_"
def check(s):
	if 1 <= len(s) <= 32:
		for c in s:
			if not c in table:
				return 400
		if s[0] in "-_" or s[-1] in "-_":
			return 400
		return 200
	return 400

S = input()
print(check(S))