#include<bits/stdc++.h>
#define fast ios::sync_with_stdio(false); cin.tie(0)
using namespace std;
#define eb emplace_back

string s;
string allowed = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-";
int main(){
    cin >> s;
    if(s.size() < 1 || s.size() > 32){
    	cout << 400 << endl;
    	return 0;
    }
    int m = s.size();
    if(s[0] == '-' || s[0] == '_' || s[m - 1] == '-' || s[m - 1] == '_'){
    	cout << 400 << endl;
    	return 0;
    }
    for(char c:s){
        if(allowed.find(c) == string::npos){
            cout << 400 << endl;
            return 0;
        }
    }
    cout << 200 << endl;
}