#include <iostream>
using namespace std;
int main(){
    string s;cin>>s;
    if(s[0] == 'Z')cout << "1st" << endl;
    else if(s[0] == 'B')cout << "2st" << endl;
    else if(s[0] == 'S')cout << "3rd" << endl;
    else if(s[0] == 'E')cout << "4th" << endl;
    else cout << "Alpha" << endl;
}