#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    cout << []() {
        char c; cin >> c;
        switch(c) {
            case 'Z': return "1st";
            case 'B': return "2nd";
            case 'S': return "3rd";
            case 'E': return "4th";
            case 'D': return "Alpha";
        }
        return "";
    }() << endl;
}