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

int main(){
    string S0; cin >> S0;

    if (S0[0]=='Z') cout << "1st" << endl;
    if (S0[0]=='B') cout << "2nd" << endl;
    if (S0[0]=='S') cout << "3rd" << endl;
    if (S0[0]=='E') cout << "4th" << endl;
    if (S0[0]=='D') cout << "Alpha" << endl;
    return 0;
}