#include <iostream>
#include <array>
#include <algorithm>

using namespace std;

int main()
{
	cin.tie(nullptr);
	ios::sync_with_stdio(false);

	const array<char, 5> subtitles = { 'B', 'D', 'E', 'S', 'Z' };
	const char* numberings[] = { "2nd", "Alpha", "4th", "3rd", "1st" };
	char S;
	cin >> S;

	cout << numberings[lower_bound(subtitles.begin(), subtitles.end(), S) - subtitles.begin()] << '\n';
	return 0;
}