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

int H, n, h[102];

int main() {
    cin >> H >> n;
    h[0] = H;
    for (int i = 0; i < n - 1; ++i) {
        cin >> h[i + 1];
    }

    sort(h, h + n, greater<int>());

    for (int i = 0; i < n; ++i) {
        if (h[i] == H) {
            if ((i + 1) % 10 == 1) {
                cout << "1st" << endl;
            }
            else if ((i + 1) % 10 == 2) {
                cout << "2nd" << endl;
            }
            else if ((i + 1) % 10 == 3) {
                cout << "3rd" << endl;
            }
            else {
                cout << i + 1 << "th" << endl;
            }
            return 0;
        }
    }

    return 0;
}