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#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
unsigned long long n,i,x,a[1000001],nr;
int main()
{
fin >>n;
for (i=1;i<=n;i++)
{
fin >>a[i];
}
x=a[1];nr=1;
for (i=2;i<=n;i++)
{
if (nr==0) {x=a[i];nr=1;}
else if (a[i]==x) {nr++;}
else nr--;
}
nr=0;
for (i=1;i<=n;i++)
{
if (x==a[i]) nr++;
}
if (nr>=n/2+1) fout <<x<<" "<<nr;
else fout <<"-1";
return 0;
}