#include <bits/stdc++.h>
#define FOR(i,bg,ed) for(ll i=(bg);i<(ed);i++)
#define REP(i,n) FOR(i,0,n)
#define MOD 1000000007
#define int long long
using namespace std;
typedef long long ll;
typedef vector<vector<ll>> mat;
const int INF = 1e9;

int H, N;
int Hi[1010];

signed main()
{
    cin >> H >> N;
    int ans = 1;
    REP(i,N-1) {
        cin >> Hi[i];
        if (H < Hi[i]) ans++;
    }

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