Baekjoon #1302

#include<bits/stdc++.h>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int N; cin >> N;
    map<string, int> mp;
    string ans;
    int mx = 0;
    for(int i = 0; i < N; ++i) {
        string S; cin >> S;
        int x = ++mp[S];
        if(x > mx) {
            mx = x;
            ans = S;
        }
        else if(x == mx) {
            ans = min(ans, S);
        }
    }
    cout << ans;

    return 0;
}

import sys

def input():
    return sys.stdin.readline().rstrip()

N = int(input())
book = {}
for i in range(N):
    name = input()
    if name not in book:
        book[name] = 1
    else:
        book[name] += 1

book = list(book.items())
book.sort(key = lambda x : (-x[1],x[0]))
print(book[0][0])