import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int nama = in.nextInt();
        int n = in.nextInt();
        int[] h = new int[n-1];
        for(int i=0; i<n-1; i++)
            h[i] = in.nextInt();

        Arrays.sort(h);

        int pos = n;
        for(int i=n-2; i>=0; i--) {
            if(nama < h[i]) {
                continue;
            } else if(i == n-2 && nama > h[i]) {
                pos = 1;
                break;
            } else {
                pos = n - i - 1;
                break;
            }
        }

        switch(pos%10) {
        case 1:
            System.out.println(pos + "st");
            break;
        case 2:
            System.out.println(pos + "nd");
            break;
        case 3:
            System.out.println(pos + "rd");
            break;
        default:
            System.out.println(pos + "th");
            break;
        }
    }
}