#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <queue>
#include <set>
#include <random>
#include <iomanip>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)

template<class T>
using vi = vector<T>;

template<class T>
using vii = vector<vi<T>>;

template<class T>
using viii = vector<vii<T>>;

int main()
{
	map<char, string> mp;
	mp['Z'] = "1st";
	mp['B'] = "2nd";
	mp['S'] = "3rd";
	mp['E'] = "4th";
	mp['D'] = "Alpha";

	string s;
	cin >> s;
	cout << mp[s[0]] << endl;

	return 0;
}