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