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#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
ifstream fin("elmaj.in"); ofstream fout("elmaj.out");
int n;
vector<int> a;
map<int, int> e;
int main(){
fin>>n;
a.resize(n+5);
for(int i=0; i<n; i++){
fin>>a[i];
e[a[i] ]++;
}
sort(a.begin(), a.end() );
a.erase(unique(a.begin(), a.end()), a.end() );
int el, o=0;
for(int i=0; i<a.size(); i++){
int c=e[a[i] ];
if(c>o ){el=a[i]; o=c;}
}
if(o>n/2){
fout<<el<<" "<<o;}
else{fout<<-1;}
return 0;
}