using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var line = Console.ReadLine().Split(' ');
        var height = int.Parse(line[0]);
        var N = int.Parse(line[1]);
        var list = new List<int>(N) { height };

        for (int i = 0; i < N-1; i++)
            list.Add(int.Parse(Console.ReadLine()));

        list = list.OrderByDescending(x => x).Distinct().ToList();
        string idxStr = (list.IndexOf(height) + 1).ToString();

        char od = (idxStr.Length >= 2) ? idxStr[1]: idxStr[0];

        switch (od)
        {
            case '1':
                Console.WriteLine("{0}st", idxStr);
                break;
            case '2':
                Console.WriteLine("{0}nd", idxStr);
                break;
            case '3':
                Console.WriteLine("{0}rd", idxStr);
                break;
            default:
                Console.WriteLine("{0}th", idxStr);
                break;
        }
    }
}