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#include <fstream>
using namespace std;
ifstream f ("elmaj.in");
ofstream g ("elmaj.out");
long long n,k,nr,a[1000003];
int main()
{
f>>n;
f>>a[1];
nr=a[1];
k=1;
for(int i=2;i<=n;i++){
f>>a[i];
if(nr==a[i])k++;
else k--;
if(k==0){k=1;nr=a[i];}
}
k=0;
for(int i=1;i<=n;i++){
if(a[i]==nr)k++;
}
if(k>n/2)g<<nr<<" "<<k<<'\n';
else g<<-1<<'\n';
return 0;
}