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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n, v[1000005], el, nr;
int main()
{
fin >> n;
for(int i=1; i<= n; i++) {
fin >> v[i];
if (!nr) el = v[i], nr++;
else {
if (v[i] == el) nr++;
else nr--;
}
}
nr = 0;
for (int i=1; i<=n; i++) if (v[i] == el) nr++;
if (nr > n/2)
fout << el << ' ' << nr;
else
fout << "-1";
return 0;
}