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#include <fstream>
#include <unordered_map>
using namespace std;
ifstream f ("elmaj.in");
ofstream g ("elmaj.out");
unordered_map<int,int> Hash;
int main()
{
int n,i,maxim,lim,x;
maxim=0;
lim=n/2+1;
f>>n;
for (i=1;i<=n;i++)
{
f>>x;
++Hash[x];
if(Hash[x]>maxim)
maxim=x;
}
if(maxim<lim)
g<<-1;
else
g<<maxim<<' '<<Hash[maxim];
f.close();
g.close();
return 0;
}