#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) begin(v),end(v)
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
using ll = long long;
using pii = pair<int, int>;
constexpr ll INF = 1ll<<30;
constexpr ll longINF = 1ll<<60;
constexpr ll MOD = 1000000007;
constexpr bool debug = false;
//---------------------------------//

int main() {
	int h, N;
	cin >> h >> N;
	vector<int> H(N - 1);
	REP(i, N - 1) scanf("%d", &H[i]);
	int ans = 1;
	REP(i, N - 1) ans += h < H[i];
	
	string ed = "th";
	switch (ans % 10) {
		case 1: ed = "st"; break;
		case 2: ed = "nd"; break;
		case 3: ed = "rd"; break;
	}
	
	cout << ans << ed << endl;
}