#include <bits/stdc++.h>
using namespace std;
int main () {
    char c;
    cin >> c;
    switch(c) {
        case 'Z' :
        cout << "1st" << endl;
        return 0;
        case 'B' :
        cout << "2nd" << endl;
        return 0;
        case 'S' :
        cout << "3rd" << endl;
        return 0;
        case 'E' :
        cout << "4th" << endl;
        return 0;
        case 'D' :
        cout << "Alpha" << endl;
    }
}