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#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
struct element{long int v,k;}x;
long int a[1000001],i,k,elm,n;
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
sort(a+1,a+n+1);
x.v=a[1]; x.k=1; k=1;
for(i=2;i<=n;i++)
if(a[i]==a[i-1])
k++;
else
if(k>x.k)
{x.k=k;
x.v=a[i-1];
k=1;}
if(x.k>=n/2+1)
g<<x.v<<' '<<x.k;
else
g<<-1;
f.close();g.close();
}