let () =
  Scanf.scanf "%d %d\n" @@ fun h n ->
  let hrr = Array.init (n-1) @@ fun _ -> Scanf.scanf "%d\n" @@ fun d -> d in
  let () = Array.fast_sort compare hrr in
  let ans = Array.fold_left (fun tmp x -> if x > h then tmp+1 else tmp) 1 hrr in
  let modN = ans mod 10 in
  Printf.printf "%d%s\n" ans (if modN = 1 then "st" else if modN = 2 then "nd" else if modN = 3 then "rd" else "th")