#include <iostream>
#include <cstdio>
#include <string>
 
using namespace std;
 
int main() {
	int size, povt, max_povt = 0;
	cin >> size;
 	string arr[size], word;
	for (int i = 0; i < size; i++){
		cin >> arr[i];
	}
 
 	for (int i = 0; i < size - 1; i++){
 		for(int j = i + 1; j < size; j++){
 			if (arr[i] == arr[j]){
 				povt ++;
 			}
 			if (povt > max_povt){
 				max_povt = povt;
 				word = arr[i];
 			}
 		}
 	}
 
 	cout << word;
 
	return 0;
}

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