#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;
    }
    bool isok = 1;
    for(char c:s){
        if(allowed.find(c) == string::npos){
            //cout << 400 << endl;
            isok = 0;
        }
    }
    for(int i = 0; i < allowed.size(); i++){
      char tmp = allowed[i];
      allowed[i] = (i == 0 ? 'B' : 'A');
      bool tmpok = 1;
      for(char c:s){
        if(allowed.find(c) == string::npos){
          tmpok = 0;
        }
      }
      if(tmpok && !isok){
        assert(0);
      }
      allowed[i] = tmp;
    }
    cout << (isok ? 200 : 400) << endl;
}