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#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,nr,v[100001],mx,p;
int main()
{
f>>n;
for(int i=1; i<=n; i++)
{
f>>v[i];
}
sort(v+1,v+n+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;
if(mx>=n/2+1)
{
g<<p<<" "<<mx;
}
else g<<-1;
return 0;
}