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#include <fstream>
using namespace std;
ifstream f("elmaj.in"); ofstream g("elmaj.out");
int n,v[1000010];
int main()
{ f>>n;
for(int i=1;i<=n;i++) f>>v[i];
int cand=0,cnt=0;
for(int i=1;i<=n;i++)
if(cnt==0) {cand=v[i]; cnt=1;}
else if(v[i]==cand) cnt++; else cnt--;
int nr=0;
for(int i=1;i<=n;i++)
if(v[i]==cand) nr++;
if(nr>n/2) g<<cand<<" "<<nr; else g<<-1;
g.close(); f.close();
return 0;
}