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#include <iostream>
#include<fstream>
using namespace std;
fstream fin("elmaj.in",ios::in),fout("elmaj.out",ios::out);
int x[1000005];
int main()
{
int n,i,c,fr=0;
fin>>n;
for(i=1;i<=n;i++)
{
fin>>x[i];
}
for(i=1;i<=n;i++)
{
if(c==0)
{
fr=x[i];
c=1;
}
else if(x[i]==fr) {
c++;
}
else --c;
}
c=0;
for (i=1;i<=n;i++)
{
if(x[i]==fr)
c++;
}
if(c>n/2)
{
fout<<fr<<" "<<c;
}
else
{
fout<<"-1";
}
fin.close();
fout.close();
return 0;
}