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#include <fstream>
using namespace std;
ofstream g("elmaj.out");
int main()
{
long long int n,v;
int k=0,elem=0,nr=0;
{ifstream f("elmaj.in");
f>>n;
for(long long i=0;i<n;i++)
{ f>>v;
if(k==0)
elem=v;
else if(v==elem)
k++;
else
k--;
}
f.close();}
ifstream f("elmaj.in");
nr=0;
f>>n;
for(long long i=0;i<n;i++)
{
f>>v;
if(v==elem)
nr++;
}
if(nr>n/2)
g<<elem<<" "<<nr;
else
g<<"-1";
f.close();
g.close();
}