import java.util.*;
import java.util.stream.Stream;
import java.time.*;
import java.time.format.*;

public class No564 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		int h = sc.nextInt();
		int n = sc.nextInt();
		Integer[] hh = new Integer[n];
		for(int i = 0; i < n - 1; i++) {
			hh[i] = sc.nextInt();
		}
		hh[n - 1] = h;
		Arrays.sort(hh, Collections.reverseOrder());

		for(int i = 0; i < n; i++) {
			if(h == hh[i]) {
				if(i == 0) {
					System.out.println("1st");
				}else if(i == 1) {
					System.out.println("2nd");
				}else if(i == 2) {
					System.out.println("3rd");
				}else {
					System.out.println(i + 1 + "th");
				}
				return;
			}
		}

	}
}