package main

import . "fmt"

func main() {
	var s string
	Scan(&s)
	switch s[0] {
		case 'Z':
		s="1st"
		case 'B':
		s="2nd"
		case 'S':
		s="3rd"
		case 'E':
		s="4th"
		default:
		s="Alpha"
	}
	Println(s)
}