#include<bits/stdc++.h>
using namespace std;

int main() {
    string S;
    if (!(cin >> S)) {
        cout << 400 << endl;
        return 0;
    }

    int n = S.length();

    if (n < 1 || n > 32) {
        cout << 400 << endl;
        return 0;
    }

    if (S[0] == '_' || S[0] == '-' || S[n-1] == '_' || S[n-1] == '-') {
        cout << 400 << endl;
        return 0;
    }

    for (int i = 0; i < n; i++) {
        char c = S[i];
        bool is_valid = isalnum(c) || c == '_' || c == '-';
        if (!is_valid) {
            cout << 400 << endl;
            return 0;
        }
    }
    cout << 200 << endl;
    return 0;
}