package main

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

func main() {
	var H, N int
	fmt.Scan(&H, &N)
	h := make([]int, N)
	for i := 0; i < N-1; i++ {
		fmt.Scan(&h[i])
	}
	h[N-1] = H
	sort.Sort(sort.Reverse(sort.IntSlice(h)))
	for i := 0; i < N; i++ {
		if h[i] == H {
			var suffix string
			switch (i + 1) % 10 {
			case 1:
				suffix = "st"
			case 2:
				suffix = "nd"
			case 3:
				suffix = "rd"
			default:
				suffix = "th"
			}
			fmt.Println(strconv.Itoa(i+1) + suffix)
			return
		}
	}
}