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