import re

ID = str(input())

for i in ID:
    if not (1 <= len(ID) <= 32):
        print("400")
        break
    if ID[0] in "_-" or ID[-1] in "_-":
        print("400")
        break
    if not re.fullmatch("^[A-Za-z0-9_-]+$", ID):
        print("400")
        break
else:
    print("200")