package main

import (
	"bufio"
	"fmt"
	"io"
	"log"
	"os"

	"strconv"
	"strings"
)

func Run(in io.Reader, out io.Writer) error {
	sc := bufio.NewScanner(in)
	sc.Scan()
	lineText := sc.Text()
	lines := strings.Split(lineText, " ")
	targetHeightText := lines[0]

	targetHeight, err := strconv.ParseInt(targetHeightText, 0, 64)

	if err != nil {
		return err
	}

	order := 1
	for sc.Scan() {
		heightText := sc.Text()
		height, parseErr := strconv.ParseInt(heightText, 0, 64)

		if parseErr != nil {
			return parseErr
		}

		if height > targetHeight {
			order++
		}
	}

	if (order % 10) == 1 {
		fmt.Fprintf(out, "%dst\n", order)
	} else if (order % 10) == 2 {
		fmt.Fprintf(out, "%dnd\n", order)
	} else if (order % 10) == 3 {
		fmt.Fprintf(out, "%drd\n", order)
	} else {
		fmt.Fprintf(out, "%dth\n", order)
	}

	return nil
}

func main() {
	err := Run(os.Stdin, os.Stdout)

	if err != nil {
		log.Fatal(err)
	}
}