import java.util.*;
import java.io.*;
import java.util.Map.Entry;

public class Main {
    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        int N = sc.nextInt();
        Map<String, Integer> vote_list = new HashMap<String, Integer>(N);
        int max_value = 1;
        for (int i = 0; i < N; i++) {
            String name = sc.next();
            if (vote_list.containsKey(name)) {
                int count = vote_list.get(name) + 1;
                vote_list.put(name, count);
                if (max_value < count) {
                    max_value = count;
                }
            } else {
                vote_list.put(name, 1);
            }
        }

        List<Entry<String, Integer>> list_entries = new ArrayList<Entry<String, Integer>>(vote_list.entrySet());
        Collections.sort(list_entries, new Comparator<Entry<String, Integer>>() {
            public int compare(Entry<String, Integer> a, Entry<String, Integer> b) {
                int compareValue = b.getValue().compareTo(a.getValue());
                if (compareValue == 0) {
                    return a.getKey().compareTo(b.getKey());
                }
                return compareValue;
            }
        });
        for (Entry<String, Integer> entry : list_entries) {
            if (entry.getValue() == max_value) {
                out.printf("%s\n", entry.getKey());
            }
            else {
                break;
            }
        }
        out.flush();
    }
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;

    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        } else {
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }

    private int readByte() {
        if (hasNextByte()) {
            return buffer[ptr++];
        }
        else {
            return -1;
        }
    }

    private static boolean isPrintableChar(int c) {
        return 33 <= c && c <= 126;
    }

    private void skipUnprintable() {
        while (hasNextByte() && !isPrintableChar(buffer[ptr])) {
            ptr++;
        }
    }

    public boolean hasNext() {
        skipUnprintable();
        return hasNextByte();
    }

    public String next() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while (isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    public int nextInt() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        int n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while (true) {
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            } else if (b == -1 || !isPrintableChar(b)) {
                return minus ? -n : n;
            } else {
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }

    public long nextLong() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while (true) {
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            } else if (b == -1 || !isPrintableChar(b)) {
                return minus ? -n : n;
            } else {
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
}


Measured memory_bytes: 124624