#include <bits/stdc++.h>

using namespace std;

int main() {
    int h, n;
    cin >> h >> n;
    vector<int> H(n - 1);
    for_each(begin(H), end(H), [](int &e){cin >>e;});
    sort(begin(H), end(H));
    for (int i = 0; i < n - 1; i++) {
        if (h < H[i]) {
            int ans = n - i;
            int mod10 = ans % 10;
            cout << ans << (mod10 == 1 ? "st" : mod10 == 2 ? "nd" : mod10 == 3 ? "rd" : "th") << endl;
            return 0;
        }
    }
    int ans = 1;
    int mod10 = ans % 10;
    cout << ans << (mod10 == 1 ? "st" : mod10 == 2 ? "nd" : mod10 == 3 ? "rd" : "th") << endl;
    return 0;
}