// No.564 背の順
package main

import (
	"fmt"
	"sort"
	"strconv"
	"strings"
)

func main() {
	var h, n int // なま君身長、クラス人数
	fmt.Scan(&h, &n)

	l := make([]int, n)
	l[0] = h
	for i := 1; i < n; i++ {
		fmt.Scan(&l[i])
	}

	sort.Sort(sort.Reverse(sort.IntSlice(l)))
	rank := 0
	for _, v := range l {
		rank++
		if v == h {
			if strings.HasSuffix(strconv.Itoa(rank), "1") {
				fmt.Println(strconv.Itoa(rank) + "st")
			} else if strings.HasSuffix(strconv.Itoa(rank), "2") {
				fmt.Println(strconv.Itoa(rank) + "nd")
			} else if strings.HasSuffix(strconv.Itoa(rank), "3") {
				fmt.Println(strconv.Itoa(rank) + "rd")
			} else {
				fmt.Println(strconv.Itoa(rank) + "th")
			}
			break
		}
	}
}