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#include <fstream>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int v[1000000];
int main()
{
int n,cnt=-1,cand,i,elmaj=-1;
fin>>n;
for(i=0;i<n;i++){
fin>>v[i];
if(cnt==-1){
cand=v[i];
cnt=1;
}
else if(cand==v[i]){
cnt++;
}
else {
cnt--;
}
}
cnt=0;
for(i=0;i<n;i++){
if(v[i]==cand){
cnt++;
}
}
if(cnt>n/2){
elmaj=cand;
}
cout<<elmaj;
return 0;
}