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

#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a, 0, sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define SIZE(array) (sizeof(array) / sizeof(array[0]))

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

#define MAX_V 100000

#define MOD 1000000007L
#define INF 2147483647

signed main() {
	int H, N;
	cin >> H >> N;
	int rank = 1;
	for (size_t i = 0; i < N - 1; i++) {
		int h;
		cin >> h;
		if (h > H) {
			rank++;
		}
	}
	if (rank == 1) {
		cout << "1st" << endl;
	} else if (rank == 2) {
		cout << "2nd" << endl;
	} else if (rank == 3) {
		cout << "3rd" << endl;
	} else {
		cout << rank << "th" << endl;
	}
}