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

#ifdef _RUTHEN
#include <debug.hpp>
#else
#define show(...) true
#endif

using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); i++)
template <class T> using V = vector<T>;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    string S;
    cin >> S;
    if (S[0] == 'Z') {
        cout << "1st\n";
    } else if (S[0] == 'B') {
        cout << "2nd\n";
    } else if (S[0] == 'S') {
        cout << "3rd\n";
    } else if (S[0] == 'E') {
        cout << "4th\n";
    } else {
        cout << "Alpha\n";
    }
    return 0;
}