package yuki173;

import java.util.Scanner;

public class A {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int N = sc.nextInt();
		int rank = 1;
		for(int i=0; i<N-1; i++) {
			if(sc.nextInt() < H) {
				;
			} else {
				rank++;
			}
		}
		sc.close();
		if(rank == 1) {
			System.out.println("1st");
		} else if(rank == 2) {
			System.out.println("2nd");
		} else if(rank == 3) {
			System.out.println("3rd");
		} else {
			System.out.println(rank + "th");
		}
	}

}