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#include <fstream>
#include <algorithm>
#define N 1000005
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int a[N], n;
int maj, ct;
int main()
{
int i;
fin >> n;
for(i=1; i<=n; i++)
{
fin >> a[i];
if(ct==0)
{
maj=a[i];
ct=1;
}
else if(a[i]==maj)
ct++;
else
ct--;
}
ct=0;
for(i=1; i<=n; i++)
if(a[i]==maj)
ct++;
if(ct >=n/2+1 )
fout << maj <<" "<< ct;
else
fout <<-1;
return 0;
}