#include <bits/stdc++.h>
#define rep(i, ss, ee) for (int i = ss; i < ee; ++i)
using namespace std;

void solve() {
  int N, H;
  cin >> H >> N;
  vector<int> v(N);
  v[0] = H;
  rep(i, 1, N) { cin >> v[i]; }
  sort(v.begin(), v.end(), greater<int>());

  string ordinal = "th";
  rep(i, 0, N) {
    if (v[i] == H) {
      if ((i + 1) % 10 == 1) ordinal = "st";
      if ((i + 1) % 10 == 2) ordinal = "nd";
      if ((i + 1) % 10 == 3) ordinal = "rd";
      cout << i + 1 << ordinal << endl;
      return;
    }
  }
}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
  getchar();
}