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