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