#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

string f(int n){
  string s = to_string(n);
  if(s[s.length() - 1] == '1') s += "st";
  else if(s[s.length() - 1] == '2') s += "nd";
  else if(s[s.length() - 1] == '3') s += "rd";
  else s += "th";
  return s;
}

int main(void){
  int h, n;
  cin >> h >> n;
  vector<int>v(n);
  for(int i = 0; i < n - 1; i++) cin >> v[i];
  v[n - 1] = h;
  sort(v.begin(), v.end(), greater<int>());
  for(int i = 0; i < n; i++){
    if(v[i] == h) cout << f(i + 1) << endl;
  }
  return 0;
}