#include <iostream>
using namespace std;
 
int main(){
	int H, N;
	cin >> H >> N;
	int ans = 1;
	for(int i = 0; i < N - 1; i++){
		int input;
		cin >> input;
		if(input > H){
			ans++;
		}
	}
	if(ans == 1){
		cout << "1st" << endl;
	}else if(ans == 2){
		cout << "2nd" << endl;
	}else if(ans == 3){
		cout << "3rd" << endl;
	}else{
		cout << ans << "th" << endl;
	}
}