#include<bits/stdc++.h> using namespace std; int main(){ int n,a[10001]={0},b; cin >> n; for(int i = 1;i <= n*3;i++) { cin >> b; a[b]++; } int max = 0,x; for(int i = 1;i <= n;i++) { if(a[i] > max) { max = a[i]; x = i; } } cout << x; return 0; }