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#include <iostream>
#include <algorithm>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,v[1000001],nr,mx,p;
int main()
{
f>>n;
for (int i=1;i<=n;i++)
{
f>>v[i];
}
sort(v+1,v+n+1);
nr=1;
for (int i=2;i<=n;i++)
{
if (v[i]==v[i-1])
{
nr++;
}
else
{
if (nr>mx)
{
mx=nr;
p=v[i-1];
}
nr=1;
}
}
if (nr>mx) mx=nr;
p=v[n];
if (mx>=n/2+1)
{
g<<p<<" "<<mx;
}
else
{
g<<-1;
}
return 0;
}