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