#include <bits/stdc++.h>

int main() {
  int H,N;
  std::cin >> H >> N;
  std::priority_queue <int> high;
  high.push(H);
  int Ha;
  for(int a = 2; a <= N; ++a) {
    std::cin >> Ha;
    high.push(Ha);
  }
  int ans = 0;
  while(!high.empty()) {
    if(high.top() == H) {
      ++ans;
      break;
    }else{
      ++ans;
    }
    high.pop();
  }
  if(ans == 1) std::cout << "1st" << std::endl;
  if(ans == 2) std::cout << "2nd" << std::endl;
  if(ans == 3) std::cout << "3rd" << std::endl;
  if(ans >= 4) std::cout << ans << "th" << std::endl;
}