#include <bits/stdc++.h>

#define show(x) cerr << #x << " = " << x << endl

using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;

template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v)
{
    os << "sz=" << v.size() << "\n[";
    for (const auto& p : v) {
        os << p << ",";
    }
    os << "]\n";
    return os;
}

template <typename S, typename T>
ostream& operator<<(ostream& os, const pair<S, T>& p)
{
    os << "(" << p.first << "," << p.second
       << ")";
    return os;
}


constexpr ll MOD = 1e9 + 7;

template <typename T>
constexpr T INF = numeric_limits<T>::max() / 100;

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int H, N;
    cin >> H >> N;
    vector<int> h(N);
    for (int i = 0; i < N - 1; i++) {
        cin >> h[i];
    }
    sort(h.begin(), h.end(), greater<int>());
    int higher = 0;
    for (int i = 0; i < N; i++) {
        if (h[i] > H) {
            higher++;
        } else {
            break;
        }
    }
    const int order = higher + 1;
    cout << order;
    if (order % 10 == 1) {
        cout << "st" << endl;
    } else if (order % 10 == 2) {
        cout << "nd" << endl;
    } else if (order % 10 == 3) {
        cout << "rd" << endl;
    } else {
        cout << "th" << endl;
    }

    return 0;
}