#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main(){
    int H, N; cin >> H >> N;
    int height;
    int ans;
    vector<int> v;
    for(int i = 0; i < N - 1; i++){
        cin >> height;
        v.push_back(height);
    }
    v.push_back(H);
    sort(v.begin(), v.end());
    reverse(v.begin(), v.end());
    for(int i = 0; i < N; i++){
        if(v[i] == H)
            ans = i + 1;
    }
    if(ans == 1){
        cout << ans << "st" << endl; 
    }else if(ans == 2){
        cout << ans << "nd" << endl; 
    }else if(ans == 3){
        cout << ans << "rd" << endl; 
    }else{
        cout << ans << "th" << endl;
    
}   return 0;
}