import java.io.*;

class Main {
    static int[] cnt = new int[20000000];
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader in = new BufferedReader(isr);
        OutputStreamWriter osw = new OutputStreamWriter(System.out);
        BufferedWriter out = new BufferedWriter(osw);
        String[] strs = in.readLine().split(" ");
        int m = Integer.parseInt(strs[0]);
        int n = Integer.parseInt(strs[1]);
        int maxN = 0; int id = 0;
        for (int i = 0; i < n; i++) {
            strs = in.readLine().split(" ");
            for (int j = 0; j < m; j++) {
                int color = Integer.parseInt(strs[j]);
                cnt[color]++;
                if (cnt[color] > maxN) {
                    id = color;
                    maxN = cnt[color];
                }
            }
        }
        out.write(id+"");
        in.close();
        isr.close();
        out.flush();
        out.close();
        osw.close();
    }
}