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