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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int v[1000001];
int main()
{int n,i,ap,em;
fin>>n;
fin>>v[1];
em=v[1];
ap=1;
for(i=2;i<=n;i++)
{
fin>>v[i];
if(em==v[i])
ap++;
else
{
ap--;
if(ap==0)
{
em=v[i];
ap=1;
}
}
}
ap=0;
for(i=1;i<=n;i++)
{
if(em==v[i])
ap++;
}
if(ap>=n/2+1)
{
fout<<em<<" "<<ap;
}
else fout<<-1;
return 0;
}