#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int (i)=(0);(i)<(int)(n);++(i))
using ll = long long;
using P = pair< int, int >;

int main() {
    int h, n;
    cin >> h >> n;

    vector<int> a(n);
    rep(i, n-1) {
        cin >> a[i];
    }
    a[n-1] = h;

    sort(a.begin(), a.end());

    int rank = n - (lower_bound(a.begin(), a.end(), h) - a.begin());

    cout << rank;
    if (rank == 1) cout << "st" << endl;
    else if (rank == 2) cout << "nd" << endl;
    else if (rank == 3) cout << "rd" << endl;
    else cout << "th" << endl;

    return 0;
}