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#include <fstream>
using namespace std;
const int NMAX=1000001;
int v[NMAX];
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int main()
{
int cand,nr=0,n;
f>>n;
for(int i=1;i<=n;i++)
f>>v[i];
for(int i=1;i<=n;i++)
if(nr==0) cand=v[i],nr=1;
else{
if(v[i]==cand) nr++;
else nr--;
}
nr=0;
for(int i=1;i<=n;i++)
if(v[i]==cand) nr++;
if(nr>n/2) g<<cand<<' '<<nr;
else g<<"-1";
return 0;
}