#include <bits/stdc++.h>
using namespace std;

int main(){
  int h,n;
  cin >> h >> n;
  int a[n-1];
  for(int i=0;i<n-1;i++){
    cin >> a[i];
  }
  sort(a,a+n);
  int r=1;
  for(int i=0;i<n-1;i++){
    if(h<a[i]){r=n-i+1;break;}
  }
  cout << r;
  if(r%10==1)cout << "st" << endl;
  else if(r%10==2)cout << "nd" << endl;
  else if(r%10==3)cout << "rd" << endl;
  else cout << "th" << endl;
  return 0;
}