import sys

def solve():
    s = sys.stdin.read().strip()
    
    if not s:
        print(400)
        return

    if len(s) < 1 or len(s) > 32:
        print(400)
        return

    if s[0] in "_-" or s[-1] in "_-":
        print(400)
        return

    allowed = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-"
    for char in s:
        if char not in allowed:
            print(400)
            return

    print(200)

if __name__ == "__main__":
    solve()