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#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int main()
{
int n, v[1000000], k=0, nr, i, c=0;
fin>>n;
for(i=0; i<n; i++){
fin>>v[i];
if(k==0){
nr=v[i];
k++;
}
else{
if(v[i]==nr)
k++;
else
k--;
}
}
for(i=0; i<n; i++)
if(v[i]==nr)
c++;
if(c<n/2+1)
fout<<"-1"<<'\n';
else
fout<<nr<<" "<<c<<'\n';
return 0;
}