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

int main() {
  string s;
  std::cin >> s;
  if (s.at(0)=='Z') {
    std::cout << "1st" << '\n';
  }
  if (s.at(0)=='B') {
    std::cout << "2nd" << '\n';
  }
  if (s.at(0)=='S') {
    std::cout << "3rd" << '\n';
  }
  if (s.at(0)=='E') {
    std::cout << "4th" << '\n';
  }
  if (s.at(0)=='D') {
    std::cout << "Alpha" << '\n';
  }
}