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#include <iostream>
#include <fstream>
#define NMAX 1000000
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n, nr, elmaj, v[NMAX+10];
int main()
{
f >> n;
for(int i=1; i<=n; i++) f >> v[i];
elmaj = v[1];
nr = 1;
for(int i=2; i<=n; i++)
{ if(v[i] == elmaj) nr++;
else nr--;
if(nr < 0) elmaj = v[i], nr = 1;
}
nr = 0;
for(int i=1; i<=n; i++) if(v[i] == elmaj) nr++;
if(nr >= n/2+1) g << elmaj << ' ' << nr << '\n';
else g << -1 << '\n';
return 0;
}