#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    int birds[5] = {};
    string strOfBirbs;
    int numOfBirbs;
    getline(cin, strOfBirbs);
    numOfBirbs = stoi(strOfBirbs);
    string birbs;
    getline(cin, birbs);
    for(int i = 0; i < (numOfBirbs*2); i+=2){
        int bird = birbs.at(i)-'0';
        birds[bird]++;
    }
    int bigBird = 0;
    for(int i = 1; i < numOfBirbs-1; i++){
        if(birds[i] > bigBird ){
            bigBird = i;
        }
    }
    cout << bigBird;
    return 0;
}